Invention Grant
US07620123B2 Receiver for estimating signal magnitude, noise power, and signal-to-noise ratio of received signals
失效
用于估计接收信号的信号幅度,噪声功率和信噪比的接收机
- Patent Title: Receiver for estimating signal magnitude, noise power, and signal-to-noise ratio of received signals
- Patent Title (中): 用于估计接收信号的信号幅度,噪声功率和信噪比的接收机
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Application No.: US12166702Application Date: 2008-07-02
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Publication No.: US07620123B2Publication Date: 2009-11-17
- Inventor: Bin Li , Gregory S. Sternberg , Philip J. Pietraski
- Applicant: Bin Li , Gregory S. Sternberg , Philip J. Pietraski
- Applicant Address: US DE Wilmington
- Assignee: InterDigital Technology Corporation
- Current Assignee: InterDigital Technology Corporation
- Current Assignee Address: US DE Wilmington
- Agency: Volpe and Koenig, P.C.
- Main IPC: H03D1/24
- IPC: H03D1/24

Abstract:
An improved receiver and method estimate one or more parameters, such as amplitude and signal-to-noise ratio, of a received signal, such as an M-QAM or q-ASK signal. The amplitude of an M-QAM signal is estimated based upon known or ascertainable phase information regarding a plurality of transmitted symbols. The amplitude of a q-ASK signal is estimated based upon known or ascertainable magnitude information regarding a plurality of transmitted symbols. In another embodiment, the amplitude of an M-QAM or q-ASK signal is estimated based on statistical knowledge of the amplitude of the transmitted symbols. Other embodiments estimate amplitude, noise power, and signal-to-noise ratio of a received signal utilizing second-order and fourth-order moments of received samples, a maximum likelihood searching process, or a Kurtosis estimation process.
Public/Granted literature
- US20080298508A1 RECEIVER FOR ESTIMATING SIGNAL MAGNITUDE, NOISE POWER, AND SIGNAL-TO-NOISE RATIO OF RECEIVED SIGNALS Public/Granted day:2008-12-04
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