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联合战术信息分发系统(JTIDS)是一种混合了跳、扩频技术的系统,它对数据包进行RS(31,15)编码和循环码字移位键控(cyclical code-shift keying,CCSK)调制。介绍了一种基于32-BOK调制的JTIDS新型信号,该信号与原有信号兼容,并使数据传输速率提高了一倍;从理论上,分别对加性白噪声和脉冲噪声干扰条件下的误码率进行了分析。仿真结果表明,基于32-BOK调制的JTIDS信号性能相对于CCSK调制有了很大提高。
The Joint Tactical Information Distribution System (JTIDS) is a hybrid system of hopping and spreading techniques that performs RS (31,15) encoding and cyclical code-shift keying (CCSK) on data packets, modulation. A new type of JTIDS signal based on 32-BOK modulation is introduced, which is compatible with the original signal and doubled the data transmission rate. Theoretically, errors of additive white noise and impulse noise Bit rate analysis. The simulation results show that the performance of JTIDS signals based on 32-BOK modulation is greatly improved compared with CCSK modulation.