Title :
Investigation on the effect of various dithers in a noisy communication channel
Author :
Sinha, A.K. ; Chadha, Prem R.
Author_Institution :
Dept. of Electr. Eng., Delhi Coll. of Eng., India
Abstract :
The performance of a polarity coincidence correlator with various dithers in the presence of noise is investigated. The dithers considered are of (1) the uniform type, (2) the sinusoidal type, (3) the Gaussian type, (4) the exponential type, (5) the Rayleigh type, and (6) of the rectangular type. The peak dither voltage is adjusted to be a factor `g´ of the interference peak, and SNRs (signal to noise ratios) in comparison with that of a classical correlator are plotted as a function of g. It is shown that in the presence of Gaussian noise it is best to use an exponential dither at g=1.6
Keywords :
correlators; interference (signal); telecommunication channels; Gaussian dither; Gaussian noise; Rayleigh dither; SNR; exponential dither; interference peak; noisy communication channel; peak dither voltage; polarity coincidence correlator; rectangular dither; signal to noise ratios; sinusoidal dither; uniform dither; Communication channels; Correlators; Educational institutions; Gaussian noise; Interference; Phase modulation; Quantization; Signal processing; Signal to noise ratio; Voltage;
Conference_Titel :
TENCON '89. Fourth IEEE Region 10 International Conference
Conference_Location :
Bombay
DOI :
10.1109/TENCON.1989.177082
