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US 12,591,054 B2Granted
Radar signal processing device, radar device, and radar signal processing method
AssigneeMitsubishi Electric Corporation
InventorKentaro Isoda
Life of this patent
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Abstract
Disclosed is a radar signal processing device including a shift unit to shift either one of an ascending sequence signal in which the frequency of a pulse wave rises discretely with time and a descending sequence signal in which the frequency of a pulse wave falls discretely with time.
Claims7
A radar signal processing device comprising:
- shift circuitry to shift either one of an ascending sequence signal in which a frequency of a pulse wave rises discretely with time and a descending sequence signal in which a frequency of a pulse wave falls discretely with time;
- relative speed measurement circuitry to calculate a product of the ascending sequence signal and the descending sequence signal either one of which is shifted by the shift circuitry, and to measure a relative speed with respect to a target by performing a Fourier transform on the calculated product;
- relative speed correction circuitry to perform a relative speed correction on each of the ascending sequence signal and the descending sequence signal on a basis of the relative speed measured by the relative speed measurement circuitry;
- synthetic band processing circuitry to perform synthetic band processing on the ascending sequence signal and the descending sequencing signal on which the relative speed correction has been performed to generate a range profile of a synthetic signal;
- and
- detection circuitry to perform detection of a distance to a target based on the generated range profile.
3 more elements
A radar signal processing method comprising:
- shifting either one of an ascending sequence signal in which a frequency of a pulse wave rises discretely with time and a descending sequence signal in which a frequency of a pulse wave falls discretely with time;
- calculating a product of the ascending sequence signal and the descending sequence signal either one of which is shifted, and measuring a relative speed with respect to a target by performing a Fourier transform on the calculated product;
- performing a relative speed correction on each of the ascending sequence signal and the descending sequence signal on a basis of the measured relative speed;
- performing synthetic band processing on the ascending sequence signal and the descending sequencing signal on which the relative speed correction has been performed to generate a range profile of a synthetic signal;
- and
- performing detection of a distance to a target based on the generated range profile.
3 more elements
Dependencies are inferred from the claim text.