Title :
Algorithm and performance of a noncoherent SNR estimator
Author :
Tsang, Chit-Sang ; Lui, Gee L. ; Woo, Kai Tuen
Author_Institution :
Aerosp. Corp., Los Angeles, CA, USA
Abstract :
This paper presents an algorithm to estimate the signal-to-noise ratio (SNR) of a communication signal in noise by noncoherent signal processing. The system is digital in structure and can be flexibly implemented either in hardware or software. The system performance is analyzed theoretically and verified by simulation. It is found that for a practical range of SNR, the estimator performs very well with an estimation error well within a fraction of a dB. Since the system is noncoherent carrier synchronization is not required. Moreover, a higher symbol synchronization jitter can be accommodated by using one sample per symbol when the system is operating in a low SNR environment
Keywords :
digital communication; error statistics; jitter; noise; parameter estimation; signal processing; synchronisation; algorithm; communication signal; digital system; estimation error; low SNR environment; noncoherent SNR estimator; noncoherent carrier synchronization; noncoherent signal processing; signal to noise ratio; simulation; software; symbol synchronization jitter; system performance; Bit error rate; Communication systems; Hardware; Optical signal processing; Performance analysis; Phase noise; Signal processing; Signal processing algorithms; Signal to noise ratio; System performance;
Conference_Titel :
Military Communications Conference, 1995. MILCOM '95, Conference Record, IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-2489-7
DOI :
10.1109/MILCOM.1995.483290
