System and method for generating repeatable PPM waveforms
US11630206B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2020 |
| Grant date | Apr 18, 2023 |
| Priority date | — |
| Expiry date | Aug 27, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/89
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Lidar and method for generating repeatable PPM waveforms to determine a range to a target include: a processor for a) creating a modulation pool, based on a maximum nominal PRF and a specified final PPM code length of N; b) obtaining a seed code; c) eliminating bad modulation levels from the modulation pool to generate a good modulation pool, d) selecting a modulation level from the good modulation pool; e) concatenating the selected modulation level to the seed code to generate an i-element modulation sequence; f) repeating steps c to e N times to generate an N-element modulation sequence; g) selecting a PRF less than the maximum nominal PRF; and h) generating a repeatable PPM waveform by applying the N-element modulation sequence to the selected PRF.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.