Noncoherent sampling technique for communications parameter estimationsThis paper presents a method of noncoherent demodulation of the PSK signal for signal distortion analysis at the RF interface. The received RF signal is downconverted and noncoherently sampled for further off-line processing. Any mismatch in phase and frequency is then compensated for by the software using the estimation techniques to extract the baseband waveform, which is needed in measuring various signal parameters. In this way, various kinds of modulated signals can be treated uniformly, independent of modulation format, and additional distortions introduced by the receiver or the hardware measurement instruments can thus be eliminated. Quantization errors incurred by digital sampling and ensuing software manipulations are analyzed and related numerical results are presented also.
Document ID
19860043062
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Su, Y. T. (LinCom Corp. Los Angeles, CA, United States)
Choi, H. J. (LinCom Corp. Los Angeles, CA, United States)