Abstract
An analysis of the relationship between a linear amplifier chain and
an analog-to-digital converter (ADC) in a digital microwave receiver,
with respect to sensitivity and dynamic range issues, is presented.
The effects of gain, third-order intermodulation products and ADC
characteristics on the performance of the receiver are illustrated
and design criteria for the linear amplifier chain (given a specified
ADC) are developed. A computer program is included which calculates
theoretical receiver performance based on gain and third-order intermodulation
product selections. Experimental results are also presented and compared
with theoretical values.
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