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本文提出了一种同时利用扩频波形分选与窄带频率分选原理实现抗干扰接收的扩频电报通信系统。文中扼要阐述了这种混合式扩频通信系统能够提高抗干扰性能的基本原理;论证了实现这种抗干扰电报通信系统的可能性;定量分析了在白噪声干扰条件下的错误概率。作为实验系统,已试制了一种兼有7他、15位、31位的伪噪声编码电报系统附加设备。这种附加设备配置到我军现有的双边带调幅、单边带或调频等各式军用电台上后,可以提高电报通信的反人为干扰的能力。用这种附加器构成的莫尔斯电码扩频人工电报通信系统具有一定的抗截获能力与较强的反人为集中干扰的能力。实验室测试与野外通信试验结果证明这种体制是可行的。系统抗干扰性能基本符合理论分析结果。
This paper presents a spread spectrum telegraph communication system that uses both spread spectrum waveform sorting and narrowband frequency separation to achieve anti-jamming reception. The basic principle of the hybrid spread spectrum communication system that can improve the anti-jamming performance is briefly described in this paper. The possibility of realizing this anti-jamming telegraphy communication system is demonstrated. The error probability under the condition of white noise interference is quantitatively analyzed. As an experimental system, an additional device for pseudo-noise coded telegraphy system with 7, 15 and 31 bits has been tried out. The deployment of such additional equipment to the military’s existing dual-band AM, SSB or FM military radio stations can enhance anti-human interference in telegraph communications. The Morse code spread-spectrum artificial telegraph communication system formed by such an adder has a certain anti-interception capability and strong anti-human interference ability. Laboratory testing and field communication test results prove that this system is feasible. System anti-jamming performance basically in line with theoretical analysis.