论文部分内容阅读
误码率是衡量PSK数字通信质量的一个重要指标。用经典理论来求解这种通信方式的误码率问题时有很大局限性,尤其是无法估算其相干本振(锁相环)的“内”噪声对误码率的影响。本文提出用蒙特—卡洛计算机模拟法来求PSK通信的误码率。此法关键在于产生高质量的模拟振荡源各种相位噪声的随机数列。为了减少计算机的运算量,还必需用重要采样方法。文中给出了计算机模拟实例。 本法不难推广用于其他数字通信方式。
Bit error rate is a measure of PSK digital communication is an important indicator of quality. The classic theory to solve this bit error rate communication method has great limitations, in particular, can not be estimated its coherent local oscillator (PLL) “internal” noise on the bit error rate. This paper proposes to use Monte-Carlo computer simulation method to find the bit error rate of PSK communication. The key of this method is to produce high-quality random sequence of various phase noise of the simulated oscillation source. In order to reduce the computational complexity of the computer, it is also necessary to use important sampling methods. The article gives a computer simulation example. This law is not difficult to promote the use of other digital communications.