Ladas & Parry, LLP
Pulsed doppler ultra-high spectral resolution imaging processing method and processing system
The present invention provides a pulsed Doppler ultra-high spectral resolution imaging processing method and processing system. The method includes: acquiring IQ signals corresponding to N sampling points respectively on each scan line; in a fast time direction, performing wall filtering processing to form an IQ signal wall filtering sequence; performing FFT on each sampling point in the IQ signal wall filtering sequence in a slow and a fast time direction, respectively, to obtain an energy distribution matrix at different frequency shifts; acquiring a velocity distribution matrix; and retrieving a velocity sequence for display, querying the velocity distribution matrix and the energy distribution matrix according to the velocity sequence, and acquiring an energy sequence corresponding to the velocity sequence for displaying a final spectrum. When a transmit signal bandwidth is wider or a scatterer velocity is faster, the velocity resolution is greatly guaranteed.
VINNO TECHNOLOGY (SUZHOU) CO., LTD
A G G A G G A G G G
A61B G01S G06T A61B G01S G06T A61B G06T G06T G01S
inventional inventional inventional inventional inventional additional inventional additional additional inventional
Jianjun Huiren
Guo Chen