Direct sequence spread spectrum communications: Applications to multiple access and jamming resistance
Abstract
The performance of binary asynchronous direct sequence spread spectrum multiple access communication systems is analyzed in terms of the average error probability with and without the presence of white Gaussian noise. The computational complexity and the accuracy of methods which approximate the error probability with finite sums are examined. Average error probability is evaluated for the case that the chip waveform is an arbitrarily shaped, timelimited, finite energy waveform. The performance of direct sequence spread spectrum modulation when corrupted by multiple continuous wave jamming signals and white Gaussian noise is studied and the average error probability is evaluated for the single tone continuous wave jamming case. It is found that the jamming signal affects performance in proportion to a parameter that depends on the codeword chosen for the direct sequence spread spectrum signal and on the difference between the frequency of the jamming signal and the spread spectrum carrier frequency.
 Publication:

Ph.D. Thesis
 Pub Date:
 1981
 Bibcode:
 1981PhDT........45W
 Keywords:

 Carrier Frequencies;
 Jamming;
 Multiple Access;
 Spread Spectrum Transmission;
 Continuous Radiation;
 Error Analysis;
 Power Spectra;
 Series Expansion;
 White Noise;
 Communications and Radar