公开(公告)号：US06538745B1

公开(公告)日：2003-03-25

申请号：US09499910

申请日：2000-02-08

申请人： Daniel A. Tazartes ,  John G. Mark ,  Brian T. Lottman ,  Shaw W. Fann

发明人： Daniel A. Tazartes ,  John G. Mark ,  Brian T. Lottman ,  Shaw W. Fann

IPC分类号： G01C1966

CPC分类号： G01C19/667

摘要： The invention is a method and apparatus for processing signals with frequencies fL and fR from a multioscillator ring laser gyro, the method being repeated at regular time intervals. The difference f&Dgr;&thgr;, of fL and fR is a measure of the angular rotation rate of the ring laser gyro and the sum fF of fL and fR divided by 2 is the Faraday bias frequency. The first step of the method comprises determining two or more of the values MLP, MRP, MFP, and M&Dgr;&thgr;P of a set of functions ML(fL), MR(fR), MF(fF), and M&Dgr;&thgr;(f&Dgr;&thgr;). The second step comprises storing two or more processed values MLS, MRS, MFS, and M&Dgr;&thgr;S of the functions ML(fL), MR(fR), MF(fF), and M&Dgr;&thgr;(f&Dgr;&thgr;) if the corresponding values of MLP, MRP, MFP, and M&Dgr;&thgr;P are valid. A processed value is derived from the value for the present time interval and zero or more processed values for prior time intervals. The third step comprises determining f&Dgr;&thgr;P or a function thereof from zero or more valid function values obtained as a result of executing the first step during the current time interval, zero or more processed values obtained as a result of executing the second step during a prior time interval, and zero or more extrapolated values obtained by extrapolating the processed values obtained as a result of executing the second step during a prior time interval to the present time interval.

摘要翻译： 本发明是用于处理来自多振荡器环形激光陀螺仪的频率为fL和fR的信号的方法和装置，该方法以规则的时间间隔重复。 fL和fR的差fDELTAtheta是环形激光陀螺仪的角度旋转速率的度量，fL和fR的和fF除以2是法拉第偏置频率。 该方法的第一步包括确定一组函数ML（fL），MR（fR），MF（fF）和MDELTAta（fDTATA））的值MLP，MRP，MFP和MDELTAthetaP中的两个或多个。 第二步包括如果MLP，MRP等的相应值存储两个或更多个功能ML（fL），MR（fR），MF（fF）和MDELTAtheta（fDELTAtheta）的处理值MLS，MRS，MFS和MDELTATATA， MFP和MDELTAthetaP均有效。 从当前时间间隔的值和先前时间间隔的零个或多个处理值导出处理值。 第三步骤包括从作为在当前时间间隔期间执行第一步骤的结果而获得的零个或多个有效函数值确定fDELTAthetaP或其函数，作为在之前时间执行第二步骤的结果而获得的零个或多个处理值 间隔，以及通过外推作为在先前时间间隔期间执行第二步骤的结果获得的处理值而获得的零个或多个外推值到当前时间间隔。