System and method for reducing a radar interference signal
AssigneeValeo Raytheon Systems, Inc.
InventorsThomas Kelly, R. Aeder, Walter Woodington
Life of this patent
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Abstract
A system and method are provided to reduce an interfering signal in a radar return signal for a frequency modulated continuous wave (FMCW) radar. Once the interfering signal is detected, an extent of the interfering signal is determined and the interfering signal is removed from the radar return signal. This allows the radar to detect a target in the presence of the interfering signal. The system and method can benefit any FMCW radar that is within the range of an interfering radar source (e.g. another FMCW radar, a police radar gun, a pulse radar, etc.) operating in the same frequency band as the FMCW radar.
Claims23
A method of processing a radar return signal, comprising:
- generating time samples associated with the radar return signal;
- and
- processing the time samples to detect an interfering signal in the time samples.
A method of detecting an interfering signal in a radar return signal, the method comprising:
- generating time samples associated with the radar return signal;
- generating an array having array values associated with the time samples;
- generating at least one threshold associated with the array values;
- comparing the array values with the at least one threshold;
- and
- detecting that the interfering signal exists if at least a selected number of array values exceed the at least one threshold.
System to process a radar return signal, comprising:
- a radar receiving module to provide a downconverted signal;
- a radar signal sampling module coupled to the radar receiving module to provide time samples associated with the downconverted signal;
- and
- an interference detector coupled to receive the time samples and to detect an interfering signal in the time samples.
Dependencies are inferred from the claim text.