Invention Grant
- Patent Title: Method and apparatus for complementary cumulative distribution driven level convergence for spectrum sensing
- Patent Title (中): 用于频谱感测的互补累积分布驱动级收敛的方法和装置
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Application No.: US11946734Application Date: 2007-11-28
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Publication No.: US08306162B2Publication Date: 2012-11-06
- Inventor: Robert J. Corke , Daniel G. Prysby
- Applicant: Robert J. Corke , Daniel G. Prysby
- Applicant Address: US IL Schaumburg
- Assignee: Motorola Solutions, Inc.
- Current Assignee: Motorola Solutions, Inc.
- Current Assignee Address: US IL Schaumburg
- Agent Barbara R. Doutre
- Main IPC: H04L27/08
- IPC: H04L27/08
Abstract:
A method for use in a digital communications receiver for controlling an input signal level (200) into an analog-to-digital converter (ADC) initially receives a sample sequence (201) where a threshold crossing rate is measured as a percentage samples of an input signal that exceed the threshold (203). The error between the measured threshold crossing rate and a desired reference threshold crossing rate is calculated (205) and an error signal is then utilized in a feedback loop to control the receiver gain such that the error is reduced (207).
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