Techniques for antenna tracking
First Claim
1. A method comprising:
- determining a first estimated signal to noise ratio (SNR) of a received radio frequency (RF) signal;
converting an output voltage of an AGC circuit coupled to the received RF signal to a second estimated SNR; and
determining an output SNR using at least the first estimated SNR when the first estimated SNR is within a first range and using at least the second estimated SNR when the second estimated SNR is within a second range, the output SNR suitable to use to determine at least one control signal suitable to modify a position of a directional antenna.
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Accused Products
Abstract
A method estimates a signal to noise ratio (SNR) of a received direct sequence spread spectrum (DSSS) signal. Using the estimated SNR, a control signal is determined that is suitable for modifying a position of a directional antenna. The control signal may be used to modify the position of the directional antenna. In another method, a first estimated SNR is determined for a received radio frequency (RF) signal. An output voltage of an AGC circuit is converted to a second estimated SNR. Using at least the first estimated SNR when the first estimated SNR is within a first range and using at least the second estimated SNR when the second estimated SNR is within a second range, an output SNR is determined. The output SNR may be used to determine the at least one control signal, which may then be used to modify the position of the directional antenna.
16 Citations
26 Claims
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1. A method comprising:
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determining a first estimated signal to noise ratio (SNR) of a received radio frequency (RF) signal; converting an output voltage of an AGC circuit coupled to the received RF signal to a second estimated SNR; and determining an output SNR using at least the first estimated SNR when the first estimated SNR is within a first range and using at least the second estimated SNR when the second estimated SNR is within a second range, the output SNR suitable to use to determine at least one control signal suitable to modify a position of a directional antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus comprising:
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a circuit that determines a first estimated signal to noise ratio (SNR) of a radio frequency (RF) signal; a circuit that converts an output voltage of an automatic gain control (AGC) circuit coupled to the RF signal to a second estimated SNR; and a circuit that determines an output SNR using at least the first estimated SNR when the first estimated SNR is within a first range and using at least the second estimated SNR when the second estimated SNR is within a second range, the output SNR suitable to use to determine at least one control signal suitable to modify a position of a directional antenna. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An apparatus comprising:
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means for determining a first estimated signal to noise ratio (SNR) of a received radio frequency (RF) signal; means for converting an output voltage of an AGC circuit coupled to the received RF signal to a second estimated SNR; and means for determining an output SNR using at least the first estimated SNR when the first estimated SNR is within a first range and using at least the second estimated SNR when the second estimated SNR is within a second range, the output SNR suitable to use to determine at least one control signal suitable to modify a position of a directional antenna.
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Specification