pseudo noise中文什么意思

例句与用法

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1. Pn pseudo noise
   伪随机噪声
2. We propose a new method of calculating the best threshold according to the characteristic of pn ( pseudo noise ) code
   根据伪随机码的特性,提出了一种新的求取最佳检测门限的方法。
3. Secondly , we prove the self - relation function and correlation function of pseudo noise code sequence and obtain the shift register generating circuit from it ' s generating function
   然后，通过伪码的生成多项式，导出伪码的移位寄存器生成电路，并分析了伪码的自相关特性和互相关特性。
4. We analyzed the anti - jam and band inside anti - interfere performance of the system , and the low probability intercept ( lpi ) of the traditional direct sequence spread spectrum ( dsss ) modulations in the uav platform ' s applications . so a new modulation technique using a multi - level pseudo noise ( pn ) code has been presented . the new multi - level pn code is built from a high speed pn code through a low passed filter ( lpf )
   分析了系统抗阻塞式干扰和抗带内频带干扰的性能，以及常规bpsk qpsk - dsss调制在无人机通信中存在的安全隐患，提出了一种用多电平pn码进行扩频调制的方法：采用高速pn码，经过低通滤波器，产生多电平pn码进行直序扩频调制，能在低信噪比情况下有效抵抗平方率检测器对系统载波的检测。
5. With the development of the electron and information technology , the blind de - spread of spread spectrum signals in non - cooperation communication has been a research hot spot . the blind detection and estimation of the chip rate and period of pseudo noise ( pn ) sequence are the precondition for the realization of blind de - spread
   随着电子战和信息战技术的发展,非合作通信条件下扩频信号盲解扩成为扩频通信领域的研究热点,扩频信号pn码速率和码周期的盲检测和盲估计是实现盲解扩的前提。