CAJ | 학술논문

CHESS电台采用了差分跳频技术，可以实现短波频段内高速率数据传输。在分析差分跳频信号的生成过程以及对信号进行检测的原理的基础上，构建了差分跳频通信系统仿真模型，对 AWGN信道和 Rayleigh信道下差分跳频信号与常规跳频信号的抗多音干扰能力进行了仿真分析。结果表明，差分跳频信号具有较强的抗多音干扰能力。
CHESS전태채용료차분도빈기술，가이실현단파빈단내고속솔수거전수。재분석차분도빈신호적생성과정이급대신호진행검측적원리적기출상，구건료차분도빈통신계통방진모형，대 AWGN신도화 Rayleigh신도하차분도빈신호여상규도빈신호적항다음간우능력진행료방진분석。결과표명，차분도빈신호구유교강적항다음간우능력。
The CHESS radio which make use of differential frequency hopping technology helps to achieve high-rate data transmis-sion in HF band. Based on analysis on the DFH sequence generation and DFH signal detection principles,the simulation model for DFH system is establised. The ability of DFH and conventional HF signals against multitone jamming under the AWGN channel as well as Rayleigh channel are simulated and analyzed. The results show that DFH system has strong performance against multitone jamming.