沈阳工业大学学报2011，Vol.33Issue(6)：691-694,701,5.
一种实现PSK信号快速码速率估计的新方法
A new method for realization of fast bit rate estimation of PSK signal
摘要
Abstract
To solve the problem concerning the quick and accurate bit rate estimation of phase-shift keying（PSK） signals,a bit rate estimation method based on the discrete accumulation average of signals was proposed.Through setting the accumulation length and step for both carrier frequency estimation value and sampling rate,the peak values of accumulation average would appear at the phase mutation-points of the signals.After setting a certain threshold,the bit rate could be calculated quickly by searching the peak value points.Because only the addition and less multiplication operations are carried out in the proposed algorithm,a large number of multiplication operations in the traditional instantaneous auto-correlation algorithm can be avoided.In addition,the proposed algorithm exhibits the characteristics of high speed and easy engineering realization.The results of simulation tests show that the proposed algorithm has certain effectiveness and accuracy,and exhibits the stronger anti-noise property compared with the instantaneous auto-correlation algorithm.关键词
相位编码信号/离散累加平均/码速率估计/累加步长/累加步进/峰值点/快速/抗噪性Key words
phase-shift keying（PSK） signal/discrete accumulation average/bit rate estimation/accumulation step length/accumulation step/peak value point/high speed/anti-noise property分类
信息技术与安全科学引用本文复制引用
刘旭波,司锡才..一种实现PSK信号快速码速率估计的新方法[J].沈阳工业大学学报,2011,33(6):691-694,701,5.基金项目
973国家安全重大基础研究基金资助项目 （）
