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US 12,730,186 B2Granted
FFT radar system
AssigneeTexas Instruments Incorporated
InventorsKarthik Subburaj, Anil Mani
Life of this patent
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Abstract
Signal processing comprising, first, determining a plurality of fast Fourier transform (FFT) values corresponding to each sample in a plurality of signal samples, second, variably compressing ones of the FFT values at different non-zero levels of compression, and third, storing the variably compressed ones of the FFT values.
Claims20
A method of signal processing, comprising:
- receiving a set of signal samples;
- performing a fast Fourier transform (FFT) operation on the set of signal samples to determine a set of FFT values;
- variably compressing ones of the FFT values at different levels of compression;
- storing the variably compressed ones of the FFT values;
- decompressing the variably compressed ones of the FFT values;
- and
- applying windowing to a frame of the decompressed variably compressed ones of the FFT values;
- wherein the variably compressing is responsive to an amount of signal attenuation provided by the windowing.
5 more elements
A system, comprising:
- fast Fourier transfer (FFT) determining circuitry adapted to produce a plurality of FFT values in response to the plurality of digital samples;
- data compression circuitry coupled to the FFT determining circuitry and adapted to variably compress ones of the FFT values at different levels of compression;
- data decompression circuitry adapted to decompress the variably compressed ones of the FFT values;
- and
- windowing circuitry adapted to apply windowing to a frame of the decompressed variably compressed ones of the FFT values,
- wherein the variably compressing is responsive to an amount of signal attenuation provided by the windowing.
3 more elements
Dependencies are inferred from the claim text.