摘要 : The authors investigate the performance of an asynchronous hybrid direct sequence/frequency-hopped spread-spectrum communication system in the presence of a combined multiple access interference, Rician fading and thermal noise. T... 展开 The authors investigate the performance of an asynchronous hybrid direct sequence/frequency-hopped spread-spectrum communication system in the presence of a combined multiple access interference, Rician fading and thermal noise. The system employs M-ary FSK modulation (M<2) and a non-coherent demodulator. Several forward error corrections are examined in this study. 收起