In many applications, there are strong discrepancies between the signal models assumed in the design phase and the actual signals encountered in the field. These discrepancies penalize significantly the performance of the matched filter that is fine tuned to the preassumed conditions. We propose a geometric framework that designs, via wavelet multiresolution-based techniques, a receiver whose p...

1 All Rights Reserved © 2012 IJARCSEE  Abstract— In this paper analysis the performance of a CDMA system by varying the system parameters. CDMA is a popular technology in cellular system due to its superior capacity and performance. In conventional CDMA, obtained better signal to noise ratio by using matched filter because of this rake receiver is used in CDMA to obtain desired signal to noise...

A USRP-BASED FLEXIBLE GNSS SIGNAL RECORDING AND PLAYBACK SYSTEM: PERFORMANCE EVALUATION AND STUDY by Ruihui Di Global Navigation Satellite Systems (GNSS) signals are often subjected to both manmade and natural interferences such as RF jamming, ionosphere scintillation, multipath, and signal anomaly. In order to achieve desired navigation application performances, advanced receiver processing or...

of software radio is the expansion of digital signal processing toward the antenna, and thus to regions where analog signal processing has been dominant so far. It is straightforward to realize that the hardware platform is a most prominent enabling component of a software radio terminal. Of special interest is the very part of the terminal where analog signal processing is replaced by digital ...

Embedded GPS receivers have become commonplace with the proliferation of GPS navigation systems into all but the least expensive vehicle and cell phone lines. As more manufacturers embed low-cost GPS receivers into their products, the need for low-cost GPS signal simulators has also grown. Controlled virtual testing is vital in ensuring the expected system performance. NAVSYS developed a low co...