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RECEIVER DESIGN DEVELOPMENT TESTING


receives radio waves and converts the information which is carried by them into a usable form. A radio receiver can be an integrated circuit (IC) within another device. radio receivers. Offering unmatched integration and PCB space savings,

A 12-channel real-time GPS L1 software receiver
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A real-time software receiver architecture can provide GPS user equipment with operational flexibility that will prove more and more useful as time goes by. The current GPS system is slated to expand its capabilities to include new civilian codes on the L2 frequency and a new

NovAtelGPS Receiver the High Performance OEM Sensor of the Future
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Abstract In this paper, the 10 channel NovAtel GPSCard receiver is presented. This receiver is available as a low cost, high performance GPS sensor, providing features and capabilities to support all OEM applications. NovAtel, a cellular systems and subscriber equipment

Receiver operating characteristic (ROC) methodology: the state of the art
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Receiver operating characteristic (ROC) analysis is a procedure, derived from statistical decision theory, that was developed in the context of electronic signal detection. 1 It is used in medical applications to evaluate the accuracy of diagnostic and prognostic technologies.

Performance of screening and diagnostic tests: application of receiver operating characteristic analysis
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METHODS Background Since Goldbergcomprehensive presentation of evidence about the General Health Questionnaire (GHQ), a psychiatric instrument for detecting psychiatric illness in primary care settings, it has been customary for psychiatric researchers to give

RINEX-The receiver independent exchange format-version 3.00
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02 Feb 2006 A few typos and obsolete paragraphs removed. 08 Mar 2006 Epochs of met data of met files version 2.11 are in GPS time only (Table A14). 31 Mar 2006 DCB header record label corrected in Table A3: SYS/DCBS APPLIED. June 2006 Filenames for mixed

Development of the low-cost RTK-GPS receiver with an open source program package RTKLIB
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Abstract: RTKLIB is an open source program package for RTK-GPS developed by the authors. RTKLIB is a compact and portable program library written in C to provide a standard platform for RTK-GPS applications. The library implements fundamental navigation functions

The neglected receiver
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Knowledge sharing has become a legitimate and important organizational activity, and over the last five years companies have been inventing many ways to make knowledge sharing happen, eg, collecting lessons learned, building yellow pages to help employees find Abstruct-In code division multiple access (CDMA) mobile radio systems, both intersymbol interference and multiple access interference arise which can be combated by using either elaborate optimum or favorable suboptimum joint detection (JD) techniques. Furthermore,

International reports: Technical directives for standardization of GPS time receiver software
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The observation, using the common-view method, of satellites of the Global Positioning System (GPS), is one of the most precise and accurate methods for time comparison between remote clocks on the Earth or in its close vicinity. It has already been shown that

Iterative receiver design
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In early 2002, I was absent-mindedly surfing the Internet, vaguely looking for a tutorial on turbo codes. My PhD advisor at Ghent University, Marc Moeneclaey, thought it wise for his new students to become familiar with these powerful error-correcting codes. Although I

GPS receiver system noise
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In radio-based communication and navigation ystems, noise originate, from variou sources: the equipment itself; other electrical devices such as radio transmitters, microwave ovens, motor, relays, ignition systems. and light dimmers; and natural terre trial and extraterrestrial

Analysis of range and position comparison methods as a means to provide GPS integrity in the user receiver
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ABSTRACT Integrity is the ability of a system to let its users know whether the system is operating out of its specified performance limits. This paper analyzes two receiverbased methods for assuring the integrity of Global Positioning System (GPS) signals-in-space for

A usermanual for DELSOL3: a computer code for calculating the optical performance and optimal system design for solar thermal central receiver plants
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ABSTRACT DELSOLS is a revised and updated version of the DELSOL2 computer program (SAND81-8237) for calculating collector field performance and layout and optimal system design for solar thermal central receiver plants. The code consists of a detailed model of the

An intuitive approach to receiver operating characteristic curve analysis
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Meaningful comparison of diagnostic imaging tests inevitably requires expression of observer performance. The most commonly used measures of observer performance sensitivity, specificity, and percentage accuracy fail to take account of variability of the

Experimental investigation of natural convection heat loss from a model solar concentrator cavity receiver
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Natural convection heat loss inevitably occurs in cavity-type receivers in high concentrating solar dishes, downward focusing systems and solar towers. In most applications, it can contribute a significant fraction of total energy loss, and hence it is an important determining

Performance of the directly-irradiated annular pressurized receiver (DIAPR) operating at 20 bar and 1,200 C
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Many modern power generation cycles and thermo-chemical processes, such as fuel production, require high temperatures in excess of 1,000 C and pressures of 10 30 bar. A solar receiver capable of operating at these conditions could be integrated with the most

From the help desk: Comparing areas under receiver operating characteristic curves from two or more probit or logit models
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Abstract. Occasionally, there is a need to compare the predictive accuracy of several fitted logit (logistic) or probit models by comparing the areas under the corresponding receiver operating characteristic (ROC) curves. Although Stata currently does not have a ready

The EMIR multi-band mm-wave receiver for the IRAM 30-m telescope
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Aims. The prime motivation of this project was to design and build a state-of-art mm-wave heterodyne receiver system to enhance the observing throughput of the IRAM 30-m radiotelescope. More specifically, the requirements were i) state-of-art noise performance for

Performance evaluation of the 200-kWth HiTRec-II open volumetric air receiver
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The High Temperature Receiver (HitTRec) consists of a modular ceramic absorber, a supporting structure and an air-return system. It has been designed to prevent possible flow instability at 700 800 C average outlet air temperature with atmospheric pressure. The

GPS and Galileo: Dual RF Front-end receiver and Design, Fabrication, And Test
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Design State of the Art GPS Galileo Dual RF ReceiversThis authoritative guide walks you through the process of designing fabricating and testing a highly integrated low noise low power and low cost RF front end for GPS and Galileo the leading satellite based global

Receiver noise temperature, the quantum noise limit, and the role of the zero-point fluctuations
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Summary There are in use at present three different ways of deducing the receiver noise temperature TR from the measured Y-factor, each resulting in a different value of TR. The methods differ in the way the physical temperatures of the hotcold loads, Th and Tc

Receiver for solar-hybrid gas turbine and CC systems (REFOS)
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ABSTRACT Solar hybrid power plants have a significant potential for cost reduction when the solar energy is introduced into a gas turbine system. The thermal efficiency of gas turbine power systems (in combined cycle or recuperated configuration) is about 40% higher

A low-noise, high-dynamic-range, digital receiver for radio astronomy applications: an efficient solution for observing radio-bursts from Jupiter, the Sun, pulsars, and
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A new two-channel digital receiver that can be used for observing both stationary and sporadic radio sources in the decameter wave band is presented. Current implementation of the device operating at the sampling frequency of 66 MHz is described in detail, including

Use of a vector delay lock loop receiver for GNSS signal power analysis in bad signal conditions
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(VDLL and VFLL) GPS receiver following the software defined radio approach and the use of this receiver to analyze signal power of GPS C/A code signals in a selection of experiments including indoor signals, car navigation and satellites at negative elevation

Acquisition schemes for software GPS receiver
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ABSTRACT This paper discloses two new acquisition approaches to improve the efficiency of conventional acquisition methods used in GPS software receivers. The first single side band approach will reduce the process time and search time of the conventional approach

PeerStreaming: A practical receiverdriven peer-to-peer media streaming system
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ABSTRACT We have developed PeerStreaming, a receiverdriven peer-topeer (P2P) media streaming system. Recognizing the fact that the peer is performing a favor for the client and the server during the streaming session, the design philosophy of PeerStreaming is to

Radio receiver design
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An attempt has been made in this book to bring together the fundamentals of radio receiver design. Difficulties were experienced in determining the order of treatment, and it was finally decided to follow introductory chapters on general considerations and valves by a detailed

Smoother-based GPS signal tracking in a software receiver
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ABSTRACT Global Positioning System (GPS) signal tracking algorithms have been developed using the concepts of Kalman filtering and smoothing. The goal is to improve phase estimation accuracy for non-real-time applications. A bit-grabber/software- receiver

Legal translation and translation theory: A receiveroriented approach
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In this age of globalization, the need for competent legal translators is greater than ever. This perhaps explains the growing interest in legal translation not only by linguists but also by lawyers, the latter especially over AbstractWe realized a monolithic dual-polarization, dual-quadrature coherent receiver with balanced detection on InP using a single epitaxial step. It monolithically integrates the polarization splitters, 90-degree hybrids, and balanced photodiodes in 4.1 mm2. We

Rate-distortion optimized receiverdriven streaming over best-effort networks
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Abstract This paper addresses the problem of streaming packetized media over a lossy packet network, in a rate-distortion optimized way, where the rate-distortion optimization is performed at the receiver . We show how the receiver should compute which packets, if any,

Application of summary receiver operating characteristics (sROC) analysis to diagnostic clinical testing
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Abstract Summary receiver operating characteristics (sROC) analysis is a recently developed statistical technique that can be applied to meta-analysis of diagnostic tests. This technique can overcome some of the limitations associated with pooling the sensitivities and

A 900-MHz CMOS direct conversion receiver
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This paper describes the design of a single-chip 900-MHz CMOS direct conversion receiver (DCR) fabricated in a digital 0.6-pm technology and operating from a 3-V supply. Shown in Fig. 1 is the DCR architecture, consisting of a low-noise amplifier (LNA), quadrature mixers,

Receiver operating characteristic (ROC) curves
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ABSTRACT Assessment of predictive accuracy is a critical aspect of evaluating and comparing models, algorithms or technologies that produce the predictions. In the field of medical diagnosis, receiver operating characteristic (ROC) curves have become the

A single GPS receiver as a real-time, accurate velocity and acceleration sensor
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ABSTRACT The determination of velocity and acceleration from GPS measurements is very important for many dynamic applications, but also for airborne gravimetry and geophysics, as long as we can achieve the specific accuracy and resolution for each application. The

Thermal modeling of a small-particle solar central receiver
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This paper presents a thermal model of a solar central receiver that volumetrically absorbs concentrated sunlight directly in a flowing gas stream seeded with submicron carbon particles. A modified six-flux radiation model is developed and used with the energy

An integrated GSM/DECT receiver : Design specifications
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The following document is a preliminary set of specifications for the second generation multi- standard receiver . These specifications should be treated as a living document subject to change; careful attention should be paid to the revision date. A brief summary and

Interference benefits of a vector delay lock loop (VDLL) GPS receiver
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ABSTRACT The interference benefits of a vector delay lock loop (VDLL) GPS receiver are compared by simulation over those of a conventional receiver as a first step before hardware implementation. Besides improvement to interference performance, other benefits to the

Carrier phase tracking of weak signals using different receiver architectures
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ABSTRACT This paper investigates four receiver architectures and their ability to track the carrier phase signal under attenuated environments. The receiver architectures considered include a standard receiver an estimator-based receiver a vector-based receiver and an

Exploring crisis from a receiver perspective: Understanding stakeholder reactions during crisis events
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In day-to-day operations, organizations are susceptible to a variety of events that can create a crisis situation. These events can range from disasters causing damage to property and loss of life, accidents that may destroy a production plant and harm the environment, to

Tightly coupled MEMS INS/GPS integration with INS aided receiver tracking loops
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Abstract Global Positioning System (GPS) receiver positioning capabilities are being challenged by increasing requirements on positioning and navigation under environments with GPS attenuated signal. This dissertation focuses on the performance enhancement of

Design and analysis of ultra-wide bandwidth impulse radio receiver
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I would like to thank the many friends and colleagues who have supported and challenged me during my graduate study at University of Southern California. Fist and foremost, I wish to acknowledge my advisor Professor Robert Scholts who gave me great opportunity to join

The receiveroperating characteristic (ROC) analysis: Fundamentals and applications in clinical psychology.
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Abstract The ReceiverOperating Characteristic (ROC) analysis has been long used in Signal Detection Theory to depict the tradeoff between hit rates and false alarm rates of classifiers. In the last years, ROC analysis has become largely used in the medical

Weak signal carrier tracking using extended coherent integration with an ultra-tight GNSS/IMU receiver
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Dr. G rard Lachapelle is a Professor of Geomatics Engineering at the University of Calgary where he is responsible for teaching and research related to location, positioning, and navigation. He has been involved with GPS developments and applications since 1980. He

Receiverdeniable Public-Key Encryption.
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Abstract Incoercible (or deniable) encryption is an important notion that allows a user (a sender and/or a receiver ) to escape a coercion attempted by a coercive adversary. Such an adversary approaches the coerced user after transmission forcing him to reveal all his AbstractWe propose a multiple access protocol for a singlehop wavelength division multiplexing (WDM)-based multichannel local lightwave network. The protocol can support a large number of high-speed bursty traffic nodes interconnected via a passive optical star

Detection and mitigation of spoofing attacks on a vector-based tracking GPS receiver
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ABSTRACT Position solutions provided by GNSS receivers can be completely misled by spoofing attacks. Consequently detection and mitigation of spoofing signals have become one of the important topics within the GNSS community. Some recently published work has

Estimating the area under a receiver operating characteristic (ROC) curve for repeated measures design
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ABSTRACT The receiver operating characteristic (ROC) curve is widely used for diagnosing as well as for judging the discrimination ability of different statistical models. Although theories about ROC curves have been established and computation methods and computer

GPS signal acquisition and tracking-An Approach towards development of Software-based GPS Receiver
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Abstract Software-based GPS (SGR) Receiver helps us processing the GPS signal at the lowest level of GPS raw signal data from the antenna. A software-based GPS receiver consists of a front-end device that converts the radio frequency signal from the antenna to an

NMEA 0183: A GPS receiver interface standard
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University of New Brunswick tion. The power supply and antenna may also be in the same package. Such single-unit, autonomous receivers are very convenient especially for applications in which small size and portability are desirable features. However, there are

Characterization of L5 receiver performance using digital pulse blanking
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ABSTRACT In November 1999, the Interagency GPS Executive Board (IGEB) endorsed a set of recommendations for implementation of the third civil GPS frequency (L5) that included specific measures to be taken within the United States to ensure that L5 can coexist

Satellite and receiver phase bias calibration for undifferenced ambiguity resolution
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ABSTRACT Precise point positioning (PPP), considered an alternative to differential positioning, is used in a significantly increased number of applications. Its integration into many practical areas is, however, slowed down by the long convergence time required in

A new solar thermal receiver utilizing a small particle heat exchanger
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ABSTRACT A dispersion of small absorbing particles forms an ideal system to collect radiant energy from concentrated sunlight to heat a pressurized gas that when expanded through a turbine will produce useful mechanical energy. A new type of solar thermal receiver based

GNSS receiver implementation on a DSP: Status, challenges, and prospects
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ABSTRACT A real-time GPS L1 C/A-code software receiver has been implemented on a Digital Signal Processor (DSP). The receiver exploits FFT-based techniques to perform autonomous acquisition down to a threshold of C/N0= 33 dB-Hz. Efficient correlation

Navigator GPS receiver for fast acquisition and weak signal space applications
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ABSTRACT NASA Goddard Space Flight Center (GSFC) is developing a new space-borne GPS receiver that can operate effectively in the full range of Earth orbiting missions from Low Earth Orbit (LEO) to geostationary and beyond. Navigator is designed to be a fully space

Phase noise tolerant synchronous QPSK receiver concept with digital IQ baseband processing
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Introduction Transmission systems with phase shift keying (PSK) are attractive to increase transmission lengths while keeping amplifier spacing fixed. Differential quaternary PSK receivers [1,2] suffer from a 2.3dB sensitivity penalty compared to synchronous quaternary PSK (QPSK) receivers AbstractWe demonstrate a novel polarization-division multiplexed (PDM) differential quadrature phase-shift keying (DQPSK) receiver . It has the minimum number of analog controls and an integrated polarization interference monitor for polarization tracking. It can

GPS errors statistical analysis for ground receiver measurements
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ABSTRACT: Keldysh Institute of Applied Mathematics RAS Abstract The creation of a autonomous spacecraftcontrol system with use GPS requires the statistical analysis of GPS error measurements. This work describes a most GPS receiver error measurements.

Precise aircraft-to-aircraft positioning using a multiple receiver configuration
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ABSTRACT A configuration of four IO-channel single frequency C/A code narrow correlator spacing receivers is used to position two aircraft with respect to each other. The platforms used are US Navy P-3 Orion aircraft cruising at speeds of 300 knots. Two receivers are

Investigating the impact of ionospheric scintillation using a GPS software receiver
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ABSTRACT Ionospheric scintillations cause RF signal amplitude fading and phase variations as GPS satellite signals pass through the ionosphere. This is a particular concern for GPS operations in high latitude regions, such as Canada, where scintillations are

ELECTRONICS COMPONENTS SALES AND SERVICE-INTEGRATED CIRCUIT-ANALOG, DIGITAL, DSP, RF IC, WIRLESS IC, VLSI, CAPACITOR, RESISTOR, INDUCTOR, PCB, MODULE, SENSOR