| 摘要 |
<p>A method for detecting offset signal corresponding to transmission leakage signal is disclosed, whereby reception sensitivity can be improved by accurately offsetting a leakage signal in transmission signal mixedly inputted into the reception signal in a radio transceiver, and an offset signal corresponding to a transmission leakage signal can be rapidly detected in the radio transceiver to rapidly offset the transmission leakage signal included in a reception signal.
The method is characterized by: (a) setting a leakage signal of a transmission signal on a vector phase-plane relative to magnitude and phase; (b) dividing the vector phase-plane to a plurality of areas to determine a plurality of sample points for each divided area; (c) sequentially detecting a vector from any one sample point selected from the pJurality of sample points to another sample point based on each area; (d) calculating a gradient of a resultant vector relative to the detected vector; (e) checking if the resultant vector has converged into a current area; (f) repeating the (b) through (e) steps at least once, if there exists a descent gradient converging into the current area; (g) determining as an offset signal corresponding to the transmission leakage signal using a maximum descent gradient among the gradients detected in the (f) step.</p> |
