US 2009/0215420 A1 · Adaptive Noise Figure Control in a Radio Receiver

Abstract

Systems and methods are provided for adjusting a noise figure in a radio receiver. An example method includes receiving a radio frequency (RF) signal at a RF receiver section. The RF receiver section includes at least one RF receiver element. The RF receiver element is controllable by at least one tuning variable. The RF signal is processed to generate a processed analog signal, which is converted to a digital signal. The digital signal is used to determine a performance parameter. The at least one tuning variable of the at least one RF receiver element is controlled to adjust the noise figure based on the performance parameter. In another aspect of the invention, an example radio receiver is provided. The radio receiver includes a RF receiver section having at least one RF receiver element. A controller determines a performance parameter using the digital signal and controls the at least one tuning variable to adjust the noise figure based on the performance parameter.

Claims29

Dependent claims

A method for adjusting a noise figure in a radio receiver, the method comprising:

receiving a radio frequency (RF) signal at a RF receiver section comprising at least one RF receiver element, the RF receiver element being controllable by at least one tuning variable;
processing the RF signal to generate a processed analog signal;
converting the processed analog signal to a digital signal;
using the digital signal to determine a test parameter indicative of system level performance;
and
determining a tuning variable setting for the at least one tuning variable of the at least one RF receiver element to optimize the noise figure based on the test parameter.

3 more elements

Dependencies are inferred from the claim text.

Adaptive Noise Figure Control in a Radio Receiver

Life of this patent

Adaptive Noise Figure Control in a Radio Receiver

Life of this patent

Abstract

Claims29