| 基于PN码的多通道幅相测量设备设计及实现 |
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| 引用本文： | 张传林,孙垂强.基于PN码的多通道幅相测量设备设计及实现[J].电子科技,2016,29(3):157. |
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| 作者姓名： | 张传林 孙垂强 |
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| 作者单位： | (中国空间技术研究院 西安分院,陕西 西安 710100) |
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| 摘 要： | 为测量校准信号源的幅度相位一致性,设计并实现了一种基于可编程门阵列的多通道幅相测量设备。该设备利用伪噪声(PN)码的伪随机性,采用相关解调的方法,在射频直接采样,减少了测量设备带来的幅度相位测量误差,并提高了测量精度。在多通道间的幅度相位差测试结果证明,幅度相位测量精度分别达到0.2 dB和2°。
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| 关 键 词： | PN码 多通道 幅度相位测量 |
Design and Implementation of Multichannel Amplitude and Phase Measurement Device |
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| ZHANG Chuanlin,SUN Chuiqiang.Design and Implementation of Multichannel Amplitude and Phase Measurement Device[J].Electronic Science and Technology,2016,29(3):157. |
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| Authors: | ZHANG Chuanlin SUN Chuiqiang |
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| Affiliation: | (Xi'an Branch,Academy of China Space Technology (CAST),Xi'an710100,China) |
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| Abstract: | A multichannel amplitude and phase measurement device based on field programmable gate array (FPGA) is proposed and implemented for the calibration signal source.The device takes advantage of the randomness of PN code and the method of correlating demodulation.Direct sampling at radio frequency is used to reduce measurement error and improve measurement precision.Test of amplitude difference in multi channels shows that the measurement precision of the amplitude and phase is 0.2 dB and 2° respectively. |
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| Keywords: | PN code multichannel the measurement of the amplitude and phase |
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