Algorithm implementation of high-speed laser gyro signal demodulation filter |
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Authors: | WEN Feng LI Jin-ming TANG Bo |
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Affiliation: | Key Laboratory of Instrumentation Science & Dynamic Measurement(North University of China),Ministry of Education, Taiyuan 030051 , China |
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Abstract: | Based on the characteristics of field-programmable gate array(FPGA) such as multi-task,high-speed,parallelity,etc,a filtering algorithm is presented to filter the output signal of laser gyr o with high-speed and high accuracy.The filter is composed of basic logic cell s,multipliers an d memory inside FPGA.By using an multiplication decomposition method and design ing reliable time-sequence,the filter is realized,which is easy to be transpl anted and of low cost.Furthermore,all the signal demodulation algorithms of t he laser gyr oscope can be integrated in only one FPGA,which reduces the cost and complexity of the system. |
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Keywords: | laser gyro digital filter high-speed demodulation field-programmable gate array (FPGA) |
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