| 摘要 |
An adaptive parasitic array antenna system having properties of directive gain, self-pointing and interference rejection is provided including an adaptive parasitic array antenna comprising at least one active element and one or more parasitic elements coupled to controlled impedances (CI). The system further comprises a transceiver, a content-based optimization criteri on computation module (CBOCM), and a control variable optimizer (CVO). The CBOC CM receives a signal waveform from the active element through the transceiver, and computes an optimization criterion (OC) based on the content of ht4e received signal. The optimization criterion is coupled to the CVO, which adaptively computes one or more control variables (CV), which are coupled to the controlled impedances CI in order to adjust the beampattern created by t he adaptive parasitic array antenna. Also disclosed are two preferred adaptatio n implementations and algorithms, a pilot-tone based adaptation system, and a decision-directed based adaptation system.
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