摘要
伪随机码具有类似于白噪声的自相关函数及频谱特性,具有扩展频谱的功能,具有较强的抗干扰能力。伪随机码广泛应用于通信及测控领域。介绍了伪随机码的主要特点,简要描述了伪随机码测时的工作原理,对系统的测时精度进行了详细分析、计算并得到了期望的结果。分析及试验表明,系统测时精度满足任务要求。最后得到结论,利用伪随机码技术进行靶场武器系统的精密时间测量是可行的。
The pseudo-random code has similar autocorrelation function and spectrum characteristics with the white noise, has the function of spread spectrum and has the higher ability of anti-jamming.The pseudo-random code is widely used in the communications and the telemetry and telecontrel system. In this paper, we introduce the main characteristics of the pseudo-random code, describe briefly the time-measuring principle by using the pseudo-random code and analyze in detail the time-measuring accuracy of the system, and we obtain the expected results. The analysis and the experimentation show that the time-measuring of the system can meet the task requirements .Finally,we conclude that it is feasible by using the pseudo-random code technique to perform the precision time-measuring of the range weapon-system.
出处
《无线电工程》
2006年第6期39-40,53,共3页
Radio Engineering
关键词
伪随机码
精密测时
均匀分布
随机误差
pseudo-random code
precision time-measuring
uniform distribution
random error
