Invention Grant
- Patent Title: Continuous wave (CW) radar system for phase-coded time delayed transmit-receive leakage cancellation
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Application No.: US15830560Application Date: 2017-12-04
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Publication No.: US10509117B1Publication Date: 2019-12-17
- Inventor: David C. Jenn , Phillip E. Pace , Ric A. Romero
- Applicant: The United States of America, as represented by the Secretary of the Navy
- Applicant Address: US VA Arlington
- Assignee: The United States of America, as represented by the Secretary of the Navy
- Current Assignee: The United States of America, as represented by the Secretary of the Navy
- Current Assignee Address: US VA Arlington
- Agency: Naval Postgraduate School
- Agent James B. Potts; Lisa A. Norris
- Main IPC: G01S13/38
- IPC: G01S13/38

Abstract:
Disclosed is a method, system, and apparatus for transmitting a randomly phase-coded CW waveform in a manner that suppresses signal leakage and enables the recovery of polyphase subcodes advantageous for the purposes of correlation and pulse compression. The CW system transmits and receives a random waveform while concurrently providing properly delayed phase conversion parameters (ϕi−Θi) from a corrections generator to various range gates. Each range gate processes any echo returns using a most recent phase conversion parameters (ϕk−Θk) provided and correlation of the resulting echo subcodes ϕR produce either target indications or noise signals, depending on the most recent phase conversion parameters (ϕk−Θk) provided to the range gate. The system may transmit the randomly phase-coded CW waveform while recovering any phase code {ϕ1, ϕ2, . . . ϕN} that lends itself to advantageous pulse compressions.
Public/Granted literature
- US20200011985A1 CONTINUOUS WAVE (CW) RADAR SYSTEM FOR PHASE-CODED TIME DELAYED TRANSMIT-RECEIVE LEAKAGE CANCELLATION Public/Granted day:2020-01-09
Information query
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