Radar system
AssigneeMurata Manufacturing Co., Ltd.
InventorsToru Ishii, Tetsu Nishimura, Motoi Nakanishi
Life of this patent
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Abstract
A radar system is capable of transmitting necessary information through a very small amount of data from a radar device to a host device via a bus with a limited bandwidth. A radar sensor generates a beat signal between a transmission signal and a reflected signal from a target. A signal processor determines a spectrum of the beat signal and compresses the data indicating the spectrum. The resultant compressed data is transmitted to the host device via a bus. The host device decompresses the received data thereby reproducing the spectrum data. The host device then detects the target on the basis of the reproduced spectrum data.
Claims19
A radar system comprising:
- a radar device including:
- a first transmitter transmitting a frequency-modulated transmission signal and generating a beat signal between a portion of the transmission signal and a signal reflected from a target;
- a determining unit determining a spectrum associated with the signal strength of the beat signal;
- a data compression unit compressing spectrum data by removing redundancy from the spectrum data;
- and
- a second transmitter transmitting the compressed data via a transmission line;
- and
- a host device receiving the compressed data via the transmission line, decompressing the compressed data, and processing the decompressed data to detect the target.
A method of using radar to detect a target comprising the steps of:
- transmitting a frequency-modulated transmission signal and generating a beat signal between a portion of the transmission signal and a signal reflected from a target;
- determining a spectrum associated with the signal strength of the beat signal;
- compressing spectrum data by removing redundancy from the spectrum data;
- and
- transmitting the compressed data to a host device;
- receiving at a host device the compressed data;
- decompressing the compressed data at the host device;
- and
- processing the decompressed data to detect the target.
Dependencies are inferred from the claim text.