We put forward a multicore parallel plan for 2D-FFT and implement it on TMS320C6678 DSP after we research thecharacteristics of different multicore DSP programming models and two-dimension FFT （2D-FFT）. We bring the...We put forward a multicore parallel plan for 2D-FFT and implement it on TMS320C6678 DSP after we research thecharacteristics of different multicore DSP programming models and two-dimension FFT （2D-FFT）. We bring the parallelcomputing capability of multicore DSP into full play and improve working efficiency of 2D-FFT. It has hugely referential valuein implementing image processing arithmetic based on 2D-FFT.展开更多
基于子空间的MUSIC(Multiple Signal Classification,MUSIC)算法是空间谱估计的重要方法,具有高精度、高分辨的优点,但同时具有运算量巨大,硬件上实现困难的缺点.针对运算量巨大的问题,特征分解将原本的复数域运算转到实数域,谱峰搜索...基于子空间的MUSIC(Multiple Signal Classification,MUSIC)算法是空间谱估计的重要方法,具有高精度、高分辨的优点,但同时具有运算量巨大,硬件上实现困难的缺点.针对运算量巨大的问题,特征分解将原本的复数域运算转到实数域,谱峰搜索使用分级搜索、对称压缩搜索、分配到多个核上进行运算,将谱峰搜索运算压缩至少1倍,缩减了运算量.硬件上选用了TI公司功能强大的TMS320C6678多核DSP芯片,使用了BIOS核间通信和共享内存技术,实现了多核同时运算.在实时性要求较高的情况下,此种实现方法具有重要的应用价值.展开更多
文摘We put forward a multicore parallel plan for 2D-FFT and implement it on TMS320C6678 DSP after we research thecharacteristics of different multicore DSP programming models and two-dimension FFT （2D-FFT）. We bring the parallelcomputing capability of multicore DSP into full play and improve working efficiency of 2D-FFT. It has hugely referential valuein implementing image processing arithmetic based on 2D-FFT.
文摘基于子空间的MUSIC(Multiple Signal Classification,MUSIC)算法是空间谱估计的重要方法,具有高精度、高分辨的优点,但同时具有运算量巨大,硬件上实现困难的缺点.针对运算量巨大的问题,特征分解将原本的复数域运算转到实数域,谱峰搜索使用分级搜索、对称压缩搜索、分配到多个核上进行运算,将谱峰搜索运算压缩至少1倍,缩减了运算量.硬件上选用了TI公司功能强大的TMS320C6678多核DSP芯片,使用了BIOS核间通信和共享内存技术,实现了多核同时运算.在实时性要求较高的情况下,此种实现方法具有重要的应用价值.
