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Method for calculation of blood velocity and blood velocity spread from multi gated doppler signals
Method for calculation of blood velocity and blood velocity spread from multi gated doppler signals
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机译:从多门多普勒信号计算血流速度和血流速度的方法
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摘要
A method for velocity estimation based on a complex demodulated doppler signal in a multi-gated doppler. The method is based on the autocorrelation function estimates of the complex demodulated doppler signal. Contribution to the correlation function from the receiver noise is found by measuring the noise in absence of echo signals. The obtained values are subtracted from the correlation estimates before further processing. A limited number of candidates for the true velocity are calculated from the autocorrelation function phase.
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