Radar equipment and received data processing method
OwnerYoshikazu Shojiinventor
Life of this patent
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Abstract
According to one embodiment, a radar equipment includes a radio transmitter, a pulse compressor, a Doppler filter, and an integration processor. The radio transmitter receives pulse signals and digitizes the received pulse signals by oversampling with a frequency higher than that for generation of a pulse compression coefficient to generate digital data. The pulse compressor performs pulse compression on the digital data using the pulse compression coefficient to generate range bin data for each of the pulse signals. The Doppler filter processor performs Doppler filter processing on the range bin data. The integration processor integrates the range bin data subjected to the Doppler filter processing for each range bin.
Claims12
A radar equipment, comprising:
- a radio transmitter configured to receive pulse signals and digitize the received pulse signals by oversampling with a frequency higher than that for generation of a pulse compression coefficient to generate digital data;
- a pulse compressor configured to perform pulse compression on the digital data using the pulse compression coefficient to generate range bin data with an increased number of samples for each of the pulse signals;
- a Doppler filter processor configured to perform Doppler filter processing on the range bin data to generate range bin data with an increased number of samples for each frequency bin;
- an integration processor configured to integrate the range bin data subjected to the Doppler filter processing for each range bin.
A radar equipment, comprising:
- a radio transmitter configured to receive pulse signals and digitize the received pulse signals by oversampling with a frequency higher than that for generation of a pulse compression coefficient to generate digital data;
- a pulse compressor configured to perform pulse compression on the digital data using the pulse compression coefficient to generate range bin data with an increased number of samples for each of the pulse signals;
- a Doppler filter processor configured to perform Doppler filter processing on the range bin data to generate range bin data with an increased number of samples for each frequency bin;
- a multiplication processor configured to calculate likelihood information based on the range bin data subjected to the Doppler filter processing, and multiply the likelihood information for each range bin.
A received data processing method, comprising:
- receiving pulse signals;
- digitizing the received pulse signals by oversampling with a frequency higher than that for generation of a pulse compression coefficient to generate digital data;
- performing pulse compression on the digital data using the pulse compression coefficient to generate range bin data with an increased number of samples for each of the pulse signals;
- performing Doppler filter processing on the range bin data to generate range bin data with an increased number of samples for each frequency bin;
- and
- integrating the range bin data subjected to the Doppler filter processing for each range bin.
A received data processing method, comprising:
- receiving pulse signals;
- digitizing the received pulse signals by oversampling with a frequency higher than that for generation of a pulse compression coefficient to generate digital data;
- performing pulse compression on the digital data using the pulse compression coefficient to generate range bin data with an increased number of samples for each of the pulse signal;
- performing Doppler filter processing on the range bin data to generate range bin data with an increased number of samples for each frequency bin;
- and
- calculating likelihood information based on the range bin data subjected to the Doppler filter processing, and multiplying the likelihood information for each range bin.
Dependencies are inferred from the claim text.