www.gusucode.com > dsp 案例源码程序 matlab代码 > dsp/ExploringTheLatencyOfTheHDLIFFTObjectExample.m
%% Exploring the Latency of the HDLIFFT Object hdlifft = dsp.HDLIFFT('FFTLength',512); L512 = getLatency(hdlifft) %% % Request hypothetical latency information about a similar object with a % different FFT Length. The properties of the original object do not % change. When you do not specify a vector length, the function assumes % scalar input data. L256 = getLatency(hdlifft,256) N = hdlifft.FFTLength %% % Request hypothetical latency information of a similar object that accepts % 8-sample vector input. L256v8 = getLatency(hdlifft,256,8) %% % Setting Normalize to true does not change the latency. hdlifft.Normalize = true; L512n = getLatency(hdlifft) %% % Setting BitReversedOutput to false increases the latency because the % object must collect the output before reordering. hdlifft.BitReversedOutput = false; L512r = getLatency(hdlifft)