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发明名称
四频激光陀螺零偏补偿方法
摘要
本发明公开了一种四频差动激光陀螺零偏补偿系统,采用顺时针或逆时针行波的拍频而非温度传感器作为补偿变量。通过高频光电探测器、放大、整形电路和电子计数器测量顺时针或逆时针拍频信号频率,然后在数字信号处理芯片中根据建立好的补偿模型补偿温度和光功率变化导致的零偏。优点是无延时、真正代表了增益介质的色散特性、既能补偿温度导致的零偏变化也能补偿增益变化导致的零偏变化。
申请公布号
CN102003957A
申请公布日期
2011.04.06
申请号
CN201010501854.X
申请日期
2010.10.01
申请人
中国人民解放军国防科学技术大学
发明人
龙兴武;汪之国;王飞
分类号
G01C19/66(2006.01)I
主分类号
G01C19/66(2006.01)I
代理机构
代理人
主权项
一种四频激光陀螺零偏补偿方法,其特征是它包括腔内含有4个行波运行的环形谐振腔,高频光电探测器将顺时针或逆时针透射光转换成电信号,经高频放大、整形后送给电子计数器,电子计数器将计数值按设定时间间隔传送给数字信号处理芯片,在数字信号处理芯片内补偿温度和光功率变化导致的零偏,从而消除温度和光功率变化导致的零偏漂移。
地址
410073 湖南省长沙市开福区德雅路109号
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