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    • 4. 发明授权
    • System and method for providing high performance quantizer processing
    • 提供高性能量化器处理的系统和方法
    • US06931358B2
    • 2005-08-16
    • US10270817
    • 2002-10-14
    • Daniel A. TazartesPeter KyriacouShaw-Wen FannJames G. Marsden
    • Daniel A. TazartesPeter KyriacouShaw-Wen FannJames G. Marsden
    • G01C21/16H03F1/26
    • G01C21/16
    • A system and method for performing high performance quantizer processing of sensor data in a multiple-channel quantizer system. A reset prioritization scheme is provided for current sources connected to an integrator in the multiple-channel quantizer for preventing saturation of the various quantizer channels. The reset prioritization scheme determines the channels most in need of a reset to prevent saturation based upon predicted quantizer signals to appear on the channels during the next processing cycle of the quantizer system. This method of controlling the reset processing permits significantly higher acceleration capacity by preventing quantizer channel saturation in system utilizing accelerometers. The quantizer processing method further includes an improved calibration scheme for self-calibrating the various channels in a multiple-channel quantizer to account for multiple sources of error, including quantizer bias, asymmetry between applied positive and negative resets, and voltage scale factor of the quantizer channel in calibration.
    • 一种用于在多通道量化器系统中执行传感器数据的高性能量化器处理的系统和方法。 为连接到多通道量化器中的积分器的电流源提供了复位优先级方案,以防止各种量化器通道的饱和。 复位优先级方案确定最需要复位的通道,以在量化器系统的下一个处理周期期间基于预测的量化器信号出现在信道上以防止饱和。 这种控制复位处理的方法通过在利用加速度计的系统中阻止量化器通道饱和来显着提高加速能力。 量化器处理方法还包括改进的校准方案,用于自校准多通道量化器中的各种通道以考虑多个误差源,包括量化器偏置,施加的正负复位之间的不对称性和量化器的电压比例因子 通道校准。
    • 5. 发明授权
    • Attitude alignment of a slave inertial measurement system
    • 从属惯性测量系统的姿态对齐
    • US07133776B2
    • 2006-11-07
    • US10333698
    • 2001-07-27
    • Robert J. BuchlerPeter KyriacouDaniel A. Tazartes
    • Robert J. BuchlerPeter KyriacouDaniel A. Tazartes
    • G01C21/00
    • F41G7/007G01C21/16G05D1/107
    • A method for attitude alignment of a slave inertial measurement system connected to a rotationally mobile platform supported by a vehicle that is stationary relative to a reference navigation frame comprises the steps of mounting a master reference inertial measurement system on the rotationally mobile platform and determining a master reference system attitude using measurements of acceleration and angular rates of the master reference inertial measurement system relative to the reference navigation frame. A slave system attitude is determined using measurements of acceleration and angular rates of the slave inertial measurement system relative to a slave system navigation reference frame and comparing the slave system attitude to the master reference system attitude to determine an attitude difference. The attitude difference is processed to obtain a correction to the slave system attitude.
    • 连接到由相对于参考导航框架固定的车辆支撑的旋转移动平台的从属惯性测量系统的姿态对准的方法包括以下步骤:将主参考惯性测量系统安装在旋转移动平台上并确定主人 参考系统姿态使用主参考惯性测量系统相对于参考导航框架的加速度和角速度的测量。 使用从属惯性测量系统相对于从属系统导航参考系的加速度和角速度的测量来确定从属系统姿态,并将从属系统姿态与主参考系统姿态进行比较以确定姿态差异。 处理态度差异以获得对从属系统姿态的校正。
    • 7. 发明授权
    • Method for compensating for fringe visibility errors in a fiber-optic
gyro
    • 用于补偿光纤陀螺仪中的边缘可见度误差的方法
    • US6008903A
    • 1999-12-28
    • US188821
    • 1998-11-09
    • Daniel A. TazartesPeter KyriacouJohn G. Mark
    • Daniel A. TazartesPeter KyriacouJohn G. Mark
    • G01C19/72G01B19/72
    • G01C19/72
    • The invention is a method for compensating for fringe visibility errors in a fiber-optic gyro. The light beam phase is modulated utilizing a phase-modulation generating function comprising a stepped waveform with steps of height 2.pi.k-.phi..sub.SE +j.phi..sub.M -.gamma..sub.ZS at time intervals .tau. where a phase step .phi. specified by the phase-modulation generating function is transformed into a change in light-beam phase of (.phi..sub.X /X).phi..sub.X where .phi..sub.X is the change in light phase produced by a phase step X. The integer k takes on the value -1, 0, or 1, j takes on the value -1 or 1, .phi..sub.SE is a phase determined by the fiber-optic gyro, .phi..sub.M is a predetermined phase value, and .gamma..sub.ZS is a phase designed to compensate for the fringe visibility errors. The phase .gamma..sub.ZS represents a small perturbation to the modulation and is a function of zone Z and state S where the zone identifier Z and state identifier S denote one of a plurality of operating conditions of the fiber-optic gyro. The zone identifier Z depends on the relative magnitudes and signs of .phi..sub.SE and .phi..sub.M, and the state identifier S is a function of k and j. Estimates of the Sagnac residual phase compensated for fringe visibility errors are then obtained by adding calculated fringe visibility compensation terms to .phi..sub.SE.
    • 本发明是用于补偿光纤陀螺中的边缘可见度误差的方法。 光束相位利用相位调制生成函数进行调制,该相位调制生成函数包括阶梯形波形,该步长波形具有以相位调制生成器指定的相位步长phi的时间间隔τ的高度2πk-phi SE + j phi M-γZS 函数被变换为(phi X / X)phi X的光束相位的变化,其中,φi是由相位步X产生的光相变化。整数k取值为-1,0或1 ,j取值-1或1,phi SE是由光纤陀螺仪确定的相位,phi M是预定相位值,gamma ZS是设计用于补偿边缘可见度错误的相位。 相位γZS表示对调制的小扰动,并且是区域Z和状态S的函数,其中区域标识符Z和状态标识符S表示光纤陀螺仪的多个操作条件之一。 区域标识符Z取决于phi SE和phi M的相对大小和符号,状态标识符S是k和j的函数。 然后通过将计算的边缘可见度补偿项添加到phi SE来获得对条纹可见度误差进行补偿的Sagnac残余相位的估计。