Long range police radar warning receiver with multiple array averaging
US5134406A · kind A · utility
49Cited by
35References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 18, 1991 |
| Grant date | Jul 28, 1992 |
| Priority date | — |
| Expiry date | Mar 18, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/022
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A police radar warning receiver includes a DSP circuit having a correlator, multiple array averager and a peak detector to provide after each sweep of a swept local oscillator respective dynamic thresholds associated with each averager array and against which information from that sweep is evaluated to determine whether to generate an alarm enable indicative of receipt of a police radar signal. The multiple averager arrays allow for different averaging or weighting ratios to maximize sensitivity of the receiver on the one hand and enhance response time on the other rather than trading off one for the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.