Doppler radar type speedometer
US4527160A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 1982 |
| Grant date | Jul 2, 1985 |
| Priority date | — |
| Expiry date | May 19, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/60
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A Doppler radar type speedometer capable of speed detection without a detection error comprises a Doppler radar signal processing circuit which includes a random access memory. In the circuit, the levels "1" of Doppler radar pulses of individual frequencies are added to the contents of the random access memory which stores the resultant data therein, so that the pulse width can be detected which is provided by the number of levels "1" at the most significant bits of the results stored in the addresses corresponding to a n/2-th output pulse signal of a predetermined number n of output pulse signals arranged in order of pulse widths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.