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大动态数字AGC电路设计与实现

更新时间:2020-08-25 08:51:17 大小:208K 上传用户:songhuahua查看TA发布的资源 标签:AGC电路设计 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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自动增益控制( AGC)能够根据信号输入大小自动调整增益,动态范围和时间常数是其中的2个关键指标。设计了一种各参数独立可控、动态范围达96 dB的大动态数字AGC电路。给出了AGC的原理及实现方案,使用Matlab仿真验证了方案的正确性和AGC的瞬态工作特性,在FPGA中对方案进行了实现,取得了预期的效果。该电路已应用于单通道数字解调接收机中。

Automatic Gain Control ( AGC) adjusts the gain of amplifier automatically based on the input signal power,and both the dynamic range and settling time are the key designing criterions. An AGC model is designed whose parameters can be controlled separately and dynamic range can reach 96 dB in the theory of AGC and the scheme of realization are presented,while the correctness and feasibility are validated by using Matlab,and the instantaneous characteristic has also been realization of AGC in FPGA have been finished by using verilog,and the result is proven to be the same as evant conclusion has been used in a single channel digital demodulation receiver.

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大动态数字AGC电路设计与实现.pdf 208K

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