一种基于脉冲抵消方式的削峰方法技术

本发明专利技术一种基于脉冲抵消方式的削峰方法，首先，对输入信号源进行过门限检测，检测出大于门限的点集合，用搜峰法搜索出点集合中的峰值点，再用峰值点的幅值触发抵消脉冲生成器，通过抵消脉冲生成器将原信号减去时序信号，从而实现峰值的抵消；由于本发明专利技术采用脉冲抵消方式，先检测出大于门限的峰值信号，再用原信号减去峰值信号对应的频谱脉冲，从而降低信号的峰均比，从硬件上可大大节约FPGA的资源，能更好地避免峰值再生和降低信号的峰均比，极大提高了功放的效率。

Peak clipping method based on pulse canceling mode

The invention relates to a method of pulse peak, offset based on the first, for threshold detection of the input signal source, detection point set is greater than the threshold, using the search method of peak search point set in the peak amplitude and peak point, triggering offset pulse generator, a pulse generator will be offset by subtracting the original signal the timing signal, so as to achieve the peak cancellation; the invention adopts pulse cancellation method, detected first peak signal is greater than the threshold, then the original signal is subtracted from the spectrum of pulse signal corresponding to the peak, so as to reduce the PAPR, which can greatly save FPGA from the hardware resources, better able to avoid the peak and decrease signal regeneration the PAPR, which greatly improves the efficiency of power amplifier.

【技术实现步骤摘要】

【技术保护点】
１．一种基于脉冲抵消方式的削峰方法，其特征在于：对输入信号源进行过门限检测，检测出所有大于门限的点集合，用搜峰法搜索出点集合中的峰值点从而形成时序信号，再用该峰值点的幅值触发抵消脉冲生成器，通过抵消脉冲生成器将原输入信号减去该时序信号，从而实现峰值的抵消。

【技术特征摘要】

【专利技术属性】
技术研发人员：张文娟，梁弟标，
申请(专利权)人：福建先创通信有限公司，
类型：发明
国别省市：35