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对数放大器已广泛使用在雷达接收机中,用来扩大接收机的动态范围及作为瞬时自动增益控制电路,在单脉冲雷达接收机中采用对数相减可用于跟踪多目标,在一般非单脉冲体制雷达中加上双讯道对数相减电路可以用来跟踪干扰源等。下面介绍晶体管对数
Logarithmic amplifiers are widely used in radar receivers to expand the receiver’s dynamic range and act as instantaneous automatic gain control circuits. Logarithmic subtraction in monopulse radar receivers can be used to track multiple targets. In general non-single Pulse system radar coupled with dual-channel logarithmic subtraction circuit can be used to track the source of interference. The following describes the transistor logarithm