With the LFM pulseframe synchronization method, the performance of UWA communication system based on DPSK is apparently improved.
同时运用线性调频脉冲帧同步法,改善了基于差分相移键控的水声数字通信系统的性能。
2
An antenna was developed to radiate high power, sub nanosecond EM pulse, which consists of a high power wideband mode convertor, a wire frame TEM horn feedback set and a parabolic reflector.