Quasi-optimal receiver for tracking and acquisition of a split spectrum PN GPS C/A signal

• US 6,058,135 A
• Filed: 02/17/1999
• Issued: 05/02/2000
• Est. Priority Date: 02/26/1998
• Status: Expired due to Term

• Current Assignee: Harris Corporation (L3Harris Technologies, Inc.)
• Original Assignee: Stanford Telecommunications, Inc. (Nokia Corporation)
• Inventors: Spilker, James J. Jr.
• Primary Examiner(s): Vo, Don N.
• Application Number:
  US09/250,846
• Time in Patent Office: 440 Days
• Field of Search: 375/200, 375/367, 370/316, 370/324, 455/12.1, 455/13.2, 701/213
• US Class Current: 375/130
• CPC Class Codes: H04B 1/69 Spread spectrum techniques

Abstract

A receiver for tracking and acquisition of the split spectrum PN GPS C/A signal constellation from an earth-orbiting satellite for radiolocation includes an RF front end for receiving and downconverting the split spectrum PN GPS C/A signals from the earth-orbiting satellite to an IF signal. The total power in the split spectrum PN GPS C/A signal is compressed and the compressed split spectrum PN GPS C/A signals are supplied to a utilization device.

Claims

1. A receiver for tracking and acquisition of a split spectrum PN GPS C/A signal constellation from earth-orbiting satellite for radiolocation comprising:

an RF front end for receiving and downconverting said split spectrum PN GPS C/A signals from said earth-orbiting satellites to an IF signal containing said split spectrum PN GBS C/A signals, means for compressing the total power in said split spectrum PN GPS C/A signals, an utilization device, and means for supplying compressed split spectrum PN GPS C/A signals to said utilization device.