【摘要】 本文提出了一种采用平滑伪WVD(SPWVD)时频分析来估计未知跳频信号参数的方法,该方法可以在不需要知道信号任何先验参数的情况下,估计出跳频信号的跳周期(hop duration),跳变时刻(hop timing)和跳频频率(跳频图案)等参数。文中对跳频信号的WVD、PWVD和SPWVD结果作了比较,指出了SPWVD的优点,给出了基于SPWVD估计跳频信号参数的具体算法步骤,并进行了性能分析。更多还原

【Abstract】 A method for estimating the parameters of unknown frequency-hopping signals based on Smoothed Pseudo WVD is proposed. Using this method, the parameter of FH signals such as hop duration,hop timing(epoch) and hopping frequencies can be estimated without knowing any a priori knowledge. A comparison of WVD, PWVD, SPWVD used for analyzing FH signals is discussed at first , then the parameter estimating algorithms are given. Simulation results demonstrate that the estimation algorithm is effective and efficient.更多还原