Invention Application
US20150195003A1 ENHANCED CROSS CORRELATION DETECTION OR MITIGATION CIRCUITS, PROCESSES, DEVICES, RECEIVERS AND SYSTEMS
审中-公开
增强交叉相关检测或缓解电路，过程，设备，接收器和系统
- Patent Title: ENHANCED CROSS CORRELATION DETECTION OR MITIGATION CIRCUITS, PROCESSES, DEVICES, RECEIVERS AND SYSTEMS
- Patent Title (中): 增强交叉相关检测或缓解电路，过程，设备，接收器和系统
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Application No.: US14632590Application Date: 2015-02-26
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Publication No.: US20150195003A1Publication Date: 2015-07-09
- Inventor: Jawaharlal Tangudu , Arun Raghupathy
- Applicant: Texas Instruments Incorporated
- Main IPC: H04B1/7103
- IPC: H04B1/7103 ; H04B1/7073 ; H04B1/709
Abstract:
A receiver (100) is provided for signals of different signal strengths and modulated with respective pseudorandom noise (PN) codes. The receiver (100) includes a correlator circuit (120) operable to correlate the signals with a selectable locally-issued PN code having a Doppler and a code lag to produce a peak, the correlator circuit (120) being subject to cross correlation with a distinct PN code carried by least one of the signals that can produce cross correlation; and a cross correlation circuit (370, 400) operable to generate a variable comparison value related to the cross correlation as a function of values representing a Doppler difference and a code lag difference between the locally-issued PN code and the distinct PN code, and to use the variable comparison value to reject the peak as invalid from cross correlation or to pass the peak as a valid received peak.
Public/Granted literature
- US09407318B2 Interference mitigation detector encompassing high power peak integer chip value Public/Granted day:2016-08-02
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