The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 25, 2023
Filed:
Apr. 30, 2020
Raytheon Company, Waltham, MA (US);
Adam Hodge Greenberg, Los Angeles, CA (US);
RAYTHEON COMPANY, Waltham, MA (US);
Abstract
A lidar for generating a cyclically optimal Pulse Position Modulated (PPM) waveform includes: a memory for storing a list of prime numbers; a processor for obtaining a list of prime numbers up to a predetermined maximum code length; selecting a largest prime number p* that is less than or equal to a ratio of a timing system bandwidth to the predetermined pulse repetition frequency (PRF), from the list of the prime numbers; constructing a list of pulse indices, m=0: p*−1 for the cyclically optimal PPM waveform; calculating a list of pulse modulations, dJs=mod(m, p*)−(p*−1)/2, wherein dJs are modulation values; calculating a list of nominal pulse timings T, as T=m×ceil(T/Δj), where Δj is a predetermined modulation resolution, and Tis the reciprocal of the PRF; calculating pulse timings tof the cyclically optimal PPM waveform as t=Δj×(T+dJs); and generating the cyclically optimal PPM waveform from the pulse timings t.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile