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Microbridge Rejustor™ Design Challenge Official Entry |
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Title: |
Improved Colocation Performance of a Microwave Impulse Radar system. |
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Abstract: |
In a Microwave Impulse Radar system, the received RF signal is directly downconverted to an audio signal using a phase coherent subsampling technique, which scales the operating frequency and the time of flight of the signal. The sampler has been measured to have a bandpass of about 4ppm (23KHz for a 5.8GHz system). By using an eTC Rejustor in an RC timebase circuit which controls the operating frequency, a given amount of statistical margin is provided from one unit to the next by setting the operating frequency of the timebase circuit. Additionally, by programming various semi-random temperature coefficients into production units, multiple MIR radars are given a higher probability of operating without interference from a similar units operated in close proximity by using an on board heater to heat the oscillator circuit containing the semi-random temperature coefficient upon interference signal detection. |
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Submitted By: |
dthayden |
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Submitted On: |
11/25/2007 |
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Total Views: |
700 |
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