نتایج جستجو برای: signal receiver

تعداد نتایج: 461056  

Journal: :Journal of physics 2021

Abstract According to the characteristics of BDS B1C signal, there are many sub peaks in autocorrelation characteristics, which leads ambiguity signal acquisition. In this paper, acquisition strategy and different strategies analyzed. Based on ASPeCT algorithm, PMF FFT is implemented FPGA navigation receiver. The generated by spiren gss9000 satellite simulator, a test scenario built for receive...

Journal: :IEEE Journal on Selected Areas in Communications 2002
Moe Z. Win Robert A. Scholtz

An ultra-wide bandwidth (UWB) signal propagation experiment is performed in a typical modern laboratory/office building. The bandwidth of the signal used in this experiment is in excess of 1 GHz, which results in a differential path delay resolution of less than a nanosecond, without special processing. Based on the experimental results, a characterization of the propagation channel from a comm...

2013
Lichun LI Feng WEI Wenmin CHEN

In this paper, a wideband receiver with high dynamic range is proposed. At the front end of the proposed receiver, a sensing waveform is used to sense the input signal. And by adjusting the sensing waveform so as to project the interference to zero, the receiver can eliminate the strong interference signal adaptively before sampling. Both the theoretic analysis and simulation show that this met...

2012
Pavel KOVÁŘ Petr KAČMAŘÍK František VEJRAŽKA

The Galileo system introduces an extremely wideband civil E5 signal for high precision navigation. The structure of the receiver for the E5 signal is complicated due to the signal complexity and the large bandwidth. It is possible to process the whole E5 signal or process separately E5a and E5b parts combining obtained results afterwards (we call here such method as piece-wise processing). The ...

2008
M. G. Petovello

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 ultra-tight GPS/IMU receiver. The receiver architectures were implemented in software and tested using pedestrianbased data collected i...

2010

When a conventional black-and-white receiver is tuned to transmissions conforming to the NTSC color standards the receiver responds fully to the first signal (the “brightness signal”) and recreates from it an image in black-and-white having a quality equal (or superior) to that provided by present black-and-white standards. Because of the nature of the chromatic signal, no normally perceptible ...

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