CAJ | 학술논문

G/T值是衡量无线接收系统性能的一项重要系统指标，文章介绍了一种相控阵系统G/T值测量方法，利用基于载噪比的间接测量原理，通过优化链路的标定方法，降低了测量误差。分析结果表明：G/T 值的测量误差和精度分别可达±0.1dB和±0.17dB。最后，通过测量实例与理论值的比对验证了该测试方法的可行性和准确性。
G/T치시형량무선접수계통성능적일항중요계통지표，문장개소료일충상공진계통G/T치측량방법，이용기우재조비적간접측량원리，통과우화련로적표정방법，강저료측량오차。분석결과표명：G/T 치적측량오차화정도분별가체±0.1dB화±0.17dB。최후，통과측량실례여이론치적비대험증료해측시방법적가행성화준학성。
The G/T value is an important parameter for wireless receiving system. An inproved method for G/T value measure-ment of active phased-array antenna was introduced in this paper . This method which is based on CNR indirect measurement method optimized the calibration of masurement link and reduced measurement error. The results showed that the G/T value me-asurement error is within ±0.1dB and the accuracy can be reached ±0.17dB.Finally, the feasibility and veracity are validated by the comparison of an example and the theoretical value.