Weak Signal Acquisition

Abstract: A method for acquisition of a weak signal from a satellite in the presence of a strong interfering signal from another satellite is disclosed. The method encompasses identifying the auto-correlation peak due to the weak satellite signal .from the cross correlation peaks due to the strong satellite signal. This invention presents a method and apparatus of acquiring a weak satellite signal in the presence of a strong interfering satellite signal in a receiver by two techniques, namely, the millisecond boundary correlation histogram method, and the frequency response correlation histogram method. Both the techniques distinguish between the correlation characteristics for auto-correlation and cross-correlation. The apparatus presented in the invention implements the methods of weak satellite signal acquisition in presence of a strong interfering satellite signal in a pseudorandom noise (PRN) receiver.

Patent Information

Application #

Filing Date

14 October 2005

Publication Number

38/2007

Publication Type

INA

Invention Field

ELECTRICAL

Status

Email

Parent Application

Applicants

ACCORD SOFTWARE AND SYSTEMS PVT. LTD.

37, KRISHNA REDDY COLON, DOMLUR LAYOUT, BANGLORE 560 001,

Inventors

1. RAY. JAYANTA KUMAR

329, 8TH MAIN, HAL 3RD STAGE, NEW THIPPASANDRA, BANGLORE 560 075,

2. CHANNARAYAPATNA SHIVARAMAIAH NAGARAJ

241, 2ND CROSS, 7TH BLOCK, 2ND STAGE, NAGARBHAVI, BANGLORE 560 072

3. DESHPANDE, SAMEET MANGESH

2ND FLOOR, 'SIRI MANOR' 14, GOPALASWAMY LAYOUT, 18TH MAIN, J.P. NAGAR 2ND PHASE, BANGLORE 560 078