2.5 gsps数字接收机的设计与测量

Proceedings of the 20th IEEE Instrumentation Technology Conference (Cat. No.03CH37412) Pub Date : 2003-05-20 DOI:10.1109/IMTC.2003.1208163

C.-i.H. Chen, K. George, W. McCormick, J. Tsui

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引用次数: 1

摘要

摘要:提出了一种利用超分辨率技术提高瞬时动态范围的2.5 GSPS数字接收机的设计方案，该数字接收机可以覆盖1 GHz带宽(125 MHz ~ 1125 MHz)，并能对两个同步信号进行校正处理。本设计使用快速傅立叶变换(FFV)来获取两个同步信号的频率。它具有比IFM接收机更好的灵敏度，因为FFT信道化输入信息更窄的带宽，它具有良好的频率分辨率(能够分离两个接近的频率)和良好的频率精度。单信号、两个信号无杂散动态范围和两个信号无杂散动态范围都很高。

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Design and measurement of 2.5 gsps digital receiver

1ABsfrarf - A design of 2.5 GSPS digifal receiver using fhe superresolufion fechnique to improve fhe insfanfaneous dynamic range is presenfed The digifal design can cover 1 GHz bandwidfh (125 MHz - 1125 MHZ) and can correcffy process fwo simultaneous signals. This design uses a fast Fourier fransform (FFV fo obfain frequencies on two simultaneous signals. If has a beffer sensiriviry than IFM receivers because fhe FFT channelizes the input info narrower bandwidth It has fine frequency resolufion (able fo separaie two closefrequencies) and goodfrequency accuracy. The single signal, fwo signal spur free dynamic ranges, 'and two signal insfanfaneous dynamic ranges are high.

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Proceedings of the 20th IEEE Instrumentation Technology Conference (Cat. No.03CH37412)

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