基于Intel集成性能基元的数字荧光频谱分析技术的软件加速实现

实时频谱分析广泛应用在电子侦察、信号捕获和监测等领域。实现了一套基于x86平台的软件化实时频谱分析系统。在Intel+Windows的通用PC机上,用C/C++编程实现数字下变频、快速傅里叶变换和数字荧光技术等关键算法,并利用Intel集成性能基元对算法进行加速,最后调用MATLAB的可视化引擎实时显示200×2 048点高分辨率荧光频谱图。系统处理速度为每秒60兆个采样点,瞬时带宽30 MHz～2 k Hz,频谱分辨率15 k Hz～1 Hz,荧光图刷新速度25帧/s。该系统为实时频谱分析提供了一套简单有效的解决方法。

Software Accelerated Implementation of Key Algorithms for Real-Time Spectrum Analysis

: Real-Time Spectrum Analysis was Widely used in electronic reconnaissance, Signal capture and monitoring. A Software Real-Time Spectrum Analysis System based on x86 platform was implemented. On general PC ,using C/C++ to realize Algorithms such as Digital Down Conversion (DDC), Fast Fourier Transform (FFT) ,Digital Phosphor Spectrum Technology(DPX). The algorithms was accelerated by Integrated Performance Primitives(IPP) library. And a 200×2048 high-resolution phosphor spectrum was displayed using the visual engine of Matlab. System processing speed is 60MSample/s, instantaneous bandwidth is 30MHz~2kHz, spectral resolution is 15kHz~1Hz, refresh rate is 25 Frames/s.The system provided a simple and efficient solution for Real-Time Spectrum Analysis.