基于受控递归算法的时频分析

提出了参数受控状态下的递归算法,利用多路并行的递归运算代替传统的滑窗FFT运算,具有速度快且数据存储量少的特点.利用受控递归算法进行时频分析,不仅所分析的频率或频段可灵活设置,而且时间分辨率和频率分辨率可调可控.该算法具有很强的主动性、适应性,适合对局部频段实时地进行信号检测、时频分析和精确的时频参数测量,也可与其他已...

Time-Frequency Analysis Using Controllable Recursive Algorithm

A new time-frequency analysis theory is proposed based on recursive algorithm whose parameter is under control. The time-frequency analysis system has the merits of high speed and low storage with multi-path parallel recursive calculation instead of conventional sliding window FFT calculation. The center frequency or local frequency band can be rectified expediently. The recursive algorithm with controllable time resolution and frequency resolution has very strong go-aheadism and adjustability. It possesses the ability of real-time detection and accurate time-frequency parameter measure. The recursive algorithm can also cooperate with other effectual algorithms or systems.