The present invention relates to a spread spectrum, FH-MFSK radio receiver capable of demodulating and decoding one or more concurrently received L-length frequency-hopping, Q level frequency shift keyed signals to determine the correct signal of a particular user. In operation, the receiver ...
音调高跳速碰撞干扰对FH／MFSK系统的干扰性能分析
1.线性合并的SFH/MFSK系统在短波信道中的性能 甘良才 ,余建国 - 通信学报 - 1996第001期 2.基于FFT解调的短波FH-DQPSK系统信道比特误码率的估计 甘良才 ,俞柏峰 ,李伟华 - 电子与信息学报 - 2002第002期 3.短波信道FH/DQPSK系统比特误码率的实时监测 甘良才 ,俞柏峰 - 电波科学学报 - 2001第001期...
The present invention relates to a majority logic spread spectrum, FH- MFSK radio receiver capable of demodulating and decoding one or more concurrently received L-length frequency-hopping, 2.sup.K - ary frequency shift keyed signals to determine the correct signal of a particular user. In opera...
研究了带反馈链路的选择式频率分集的短波信道FH/MFSK编码系统,在具有加性白高斯噪声(AWGN)的瑞利衰落信道中,存在部分频带噪声阻塞时的性能,给出了采用RS码,双-k码,重发码时,无编码和有编码系统的码符差错率与比特能量噪声比的关系曲线. 关键词: 噪声阻塞,瑞利衰落信道,信道编码 DOI: 10.1007/BF02943514 被引...
针对FH/MFSK系统,提出一种MFSK信号的M维软解调能量信息,作为译码器软输入的方法,避免了近似比特对数似然信息(LLR)的计算,并结合卷积码,给出了相应的软译码算法。理论推导了采用该算法的FH/MFSK系统在AWGN和Rayleigh衰落信道下抗PBNJ性能,给出了BER的上界闭合表达式。计算机仿真验证了理论推导的正确性,并与近似比特LLR...
Chang J J,Lee L S.An exact performance analysis of the clipped diversity combining receiver for FH/MFSK systems against band multitone jammer. IEEE Transactions on Communications . 1994An exact performance analysis of the clipped diversity combining receiver for FH/MFSK systems against band multi...
The performance of frequency-hopped (FH)M-ary frequency-shift keyed (MFSK) signals in partial-band noise has been extensively analyzed in the open literature. This paper extends the previous research to the usually more effective class of multitone jamming. Specifically, this paper will 1) catego...
a kind of tone fast-hop-collision jamming model,analyzes the jamming performance of FH/MFSK system,and simulates the bit error ratio performance of FH/MFSK system under the fast-hop-collision jamming.The simulation result shows that the tone fast-hop-collision jamming can threaten the FH system...
1) FH/MFSK system FH/MFSK系统例句>> 2) DS-FH system DS-FH系统 1. Based on the analysis on the anti-jamming capability of DS system and DS-FH system,the anti-jamming capability of the hybrid DS-FH spread-spectrum system is researched. 通过对DS及DS-FH两种通信体制抗干扰能力的比较...