Invention Grant
- Patent Title: Method of spread code acquisition using phase multiplexed shuffled correlation and concurrent two parameter alignment screening
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Application No.: US16598601Application Date: 2019-10-10
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Publication No.: US10735046B1Publication Date: 2020-08-04
- Inventor: Paul D. Swanson
- Applicant: United States of America as represented by the Secretary of the Navy
- Applicant Address: US DC Washington
- Assignee: United States Government as represented by the Secretary of the Navy
- Current Assignee: United States Government as represented by the Secretary of the Navy
- Current Assignee Address: US DC Washington
- Agency: Naval Information Warfare Center Pacific
- Agent Kyle Eppele; J. Eric Anderson
- Main IPC: H04B1/7075
- IPC: H04B1/7075 ; H04B1/7077 ; H04J13/00
Abstract:
A receiver is provided for acquiring a DSSS signal. The receiver includes a splitter, a first multiplier, a second multiplier and a processor. The splitter is operable to split the DSSS signal into a first DSSS signal and a second DSSS signal. The first multiplier is operable to multiply the first DSSS signal by a shuffled pseudo-noise sequence and a sine function to obtain a first correlation value. The second multiplier is operable to multiply the second DSSS signal by the shuffled pseudo-noise sequence and a cosine function to obtain a second correlation value. The processor is operable to determine an alignment delay based on the first correlation value and the second correlation value.
Information query
