线路均衡器控制方法，积分电路，频移电路和传输装置。
Line equalizer control method, and integrating circuit, frequency shift circuit and transmission device.
与通常的直接序列扩颗通信方式(DS - SS)相比，移频键控多值传送扩颗通信方式(FSK - SS)具有传输效率高的特点。
FSK-SS communication system has higher transmission efficiency as compared with direct series spread spectrum (DS-SS) communication system.
OFDM是一种无线传播环境下的高速传输技术，适合在多径传播和多普勒频移的无线信道中传输高速数据。
OFDM is a high transmission technology in the wireless propagation environment. It is fitted to transmit high-speed data in the wireless channel which has multi-path delay and Doppler frequency shift.
使用新方法的优点在于利用光纤长距离传输多普勒频移信号，因此具有抗野外雷电及其他电磁干扰的特性。
The process has the advantage of immunity to lightning and other electromagnetic interference by the use of optical fiber transmission.
详细分析星间通信环境，明确影响星间通信质量的三个模块：空间传输损耗、多普勒频移和噪声模块。
The simulation modules of space transmission lose and Doppler frequency shift are presented based on the result of geometric characteristics analysis.
详细分析星间通信环境，明确影响星间通信质量的三个模块：空间传输损耗、多普勒频移和噪声模块。
The simulation modules of space transmission lose and Doppler frequency shift are presented based on the result of geometric characteristics analysis.
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