| 水声高频微弱信号的程控测量 |
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| 引用本文： | 曾文琪,初昀辉,韦高. 水声高频微弱信号的程控测量[J]. 微电子学, 2000, 30(4): 254-257 |
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| 作者姓名： | 曾文琪 初昀辉 韦高 |
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| 作者单位： | 西北工业大学,电子工程系,陕西,西安,710072 |
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| 摘 要： | 叙述了大动态弱信号测量的实现方法，程控放大器由低噪声电流反馈虎放大器构成，扩展了的频带，通过计算机对接收机增益进行智能化控制，既避免了放大器饱和，又使得采样的量化误差最小。由软件控制选择滤波器，这样可以在工的频带获得低噪声的信号。
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| 关 键 词： | 弱信号测量 程控放大器 电流反馈运算放大器 |
| 文章编号： | 1004-3365(2000)04-0254-04 |
| 修稿时间： | 1999-12-28 |
Programmable Measurement of High Frequency Weak Underwater Signals |
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| ZENG Wen-qi,CHU Yun-hui,WEI Gao. Programmable Measurement of High Frequency Weak Underwater Signals[J]. Microelectronics, 2000, 30(4): 254-257 |
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| Authors: | ZENG Wen-qi CHU Yun-hui WEI Gao |
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| Abstract: | A technique for implementation of large dynamic range weak signal measurement is described. The use of low-noise current-feedback operational amplifier expands the bandwidth of meaurement. The smart gam-con- trol of the receiver not only avoids the amplifier saturation,but also minimizes the discrete error. The selection of filter is controlled by software,so that low-noise signal can be acquired in a wide frequency band. |
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| Keywords: | Weak signal measurement Programmable amp[ifier Carrent-feedback operational amplifier |
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