| 摘要 |
An array of receiver elements in a radar or sonar system is synthetically elongated resulting in a narrower beam pattern. This is accomplished by sampling each output signal of the receiver elements, converting the signal to I and Q components for determination of a magnitude and phase angle. The phase angle is modified by a certain phase modulation factor fm and new I and Q components are calculated using the modified phase angle. The modified I and Q components from all of the received elements are combined for display purposes.
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