三、理论频谱与误比特率这是指已调波在理想信道中传输时,或者说没有受到带限与非线性信道影响时的频谱与误比特率。当已调波受到带限与非线性信道影响时的频谱与误比特率,称为实际频谱与实际误比特率。 1.理论频谱对于MSK、OQPSK、SFSK、QPSK、BPSK的频谱,目前有三种分析方法,即标准的贝塞尔函数展开式、矩阵分析方法以及一阶马尔科夫过程的推广。后面这两种方法都便于 Third, the theoretical spectrum and bit error rate This refers to the modulated wave has been transmitted in the ideal channel, or not band-limited and non-linear channels when the spectrum and bit error rate. When the modulated wave is band-limited and non-linear channel spectrum and bit error rate, known as the actual spectrum and the actual bit error rate. 1. Theoretical Spectrum There are currently three analysis methods for the spectrum of MSK, OQPSK, SFSK, QPSK and BPSK, namely the standard Bessel function expansion, the matrix analysis method and the promotion of first-order Markov process. The latter two methods are easy