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1. 发明授权

US08717575B2 Systems and methods for environmentally insensitive high-performance fiber-optic gyroscopes 有权
标题翻译：用于环境不敏感的高性能光纤陀螺仪的系统和方法
公开(公告)号：US08717575B2
公开(公告)日：2014-05-06
申请号：US13211658
申请日：2011-08-17
申请人： Steven J. Sanders , Jeffrey E. Lewis , Sorin Mosor , David A. Doheny , Norman Gerard Tarleton , Austin Taranta
发明人： Steven J. Sanders , Jeffrey E. Lewis , Sorin Mosor , David A. Doheny , Norman Gerard Tarleton , Austin Taranta
IPC分类号： G01C19/72
CPC分类号： G01C19/721
摘要： Systems and methods for environmentally insensitive high-performance fiber-optic gyroscopes are provided. In one embodiment, a loop closure electronics apparatus for a fiber optic gyroscope having an optical phase modulator characterized by a transfer function that includes an error component of at least second order is provided. The apparatus comprises: a first digital circuit that generates a digital bias modulation signal; a second digital circuit that generates a digital feedback signal; at least one digital-to-analog converter that produces an electrical signal that drives the phase modulator from the digital bias modulation signal and the digital feedback signal; and a compensator that includes an analog filter of at least second order and a digital filter of at least second order, wherein the analog filter and the digital filter pre-filter the electrical signal to compensate for the error component.
摘要翻译：提供了环境不敏感的高性能光纤陀螺仪的系统和方法。在一个实施例中，提供了一种用于光纤陀螺仪的闭环电子装置，其具有光学相位调制器，其特征在于包括至少二阶的误差分量的传递函数。该装置包括：产生数字偏置调制信号的第一数字电路; 产生数字反馈信号的第二数字电路; 至少一个数模转换器，其产生从所述数字偏置调制信号和所述数字反馈信号驱动所述相位调制器的电信号; 以及补偿器，其包括至少二阶的模拟滤波器和至少二阶的数字滤波器，其中所述模拟滤波器和所述数字滤波器对所述电信号进行预滤波以补偿所述误差分量。

2. 发明申请

US20110181887A1 SYNCHRONOUS RADIATION HARDENED FIBER OPTIC GYROSCOPE 有权
标题翻译：同步辐射硬化光纤陀螺仪
公开(公告)号：US20110181887A1
公开(公告)日：2011-07-28
申请号：US12694744
申请日：2010-01-27
申请人： Norman Gerard Tarleton , Stephan Enzone , David A. Doheny , Derek Mead
发明人： Norman Gerard Tarleton , Stephan Enzone , David A. Doheny , Derek Mead
IPC分类号： G01C19/66
CPC分类号： G01C19/72
摘要： A synchronous fiber optic gyroscope includes a light source, an optical coupler in optical communication with the light source, an optical modulator in optical communication with the coupler, and a fiber optic coil in optical communication with the modulator. A detector is configured to receive an optical signal from the coupler and convert the optical signal to an electrical signal. A loop closure signal processor has a first input configured to receive the electrical signal from the detector. A phase lock loop has an output operatively connected to a second input of the processor. A direct digital synthesizer is operatively coupled to an input of the phase lock loop, with the synthesizer configured to generate a low-frequency signal that is transmitted to the phase lock loop. The phase lock loop converts the low-frequency signal to a high-frequency signal that is transmitted to the second input of the processor, and the phase lock loop provides signal modulation that is synchronous with signal demodulation.
摘要翻译：同步光纤陀螺仪包括光源，与光源光通信的光耦合器，与耦合器光通信的光调制器和与调制器光通信的光纤线圈。检测器被配置为从耦合器接收光信号并将光信号转换成电信号。闭环信号处理器具有被配置为从检测器接收电信号的第一输入。锁相环具有可操作地连接到处理器的第二输入的输出。直接数字合成器可操作地耦合到锁相环的输入端，合成器被配置为产生传输到锁相环的低频信号。锁相环将低频信号转换为发送到处理器的第二输入端的高频信号，锁相环提供与信号解调同步的信号调制。

3. 发明申请

US20100253948A1 SYSTEMS AND METHODS FOR RESONATOR FIBER OPTIC GYROSCOPE INTENSITY MODULATION CONTROL 有权
标题翻译：谐振光纤陀螺强度调制控制系统与方法
公开(公告)号：US20100253948A1
公开(公告)日：2010-10-07
申请号：US12729660
申请日：2010-03-23
申请人： Lee K. Strandjord , Glen A. Sanders , Norman Gerard Tarleton
发明人： Lee K. Strandjord , Glen A. Sanders , Norman Gerard Tarleton
IPC分类号： G01C19/72
CPC分类号： G01C19/727
摘要： Systems and methods for improved resonator fiber optic gyroscope intensity modulation control are provided. In one embodiment, a resonant fiber optic gyroscope (RFOG) having a residual intensity modulation (RIM) controller comprises: an intensity modulator optically coupled to receive a light beam from a laser source modulated at a resonance detection modulation frequency; an optical tap device optically coupled to the intensity modulator; and a feedback servo coupled to the optical tap device and the intensity modulator, the demodulating feedback servo generating a sinusoidal feedback signal to the intensity modulator. The feedback servo adjusts an amplitude and phase of the sinusoidal feedback signal provided to intensity modulator based on a residual intensity modulation detected by the demodulating feedback servo.
摘要翻译：提供了改进谐振器光纤陀螺仪强度调制控制的系统和方法。在一个实施例中，具有残余强度调制（RIM）控制器的谐振光纤陀螺仪（RFOG）包括：光耦合的光强调制器，用于接收来自以谐振检测调制频率调制的激光源的光束; 与所述强度调制器光耦合的光学抽头装置; 以及耦合到光学抽头装置和强度调制器的反馈伺服器，解调反馈伺服器向强度调制器产生正弦反馈信号。基于由解调反馈伺服检测到的残余强度调制，反馈伺服调节提供给强度调制器的正弦反馈信号的幅度和相位。

4. 发明申请

US20130044328A1 SYSTEMS AND METHODS FOR ENVIRONMENTALLY INSENSITIVE HIGH-PERFORMANCE FIBER-OPTIC GYROSCOPES 有权
标题翻译：环境敏感的高性能光纤陀螺仪的系统和方法
公开(公告)号：US20130044328A1
公开(公告)日：2013-02-21
申请号：US13211658
申请日：2011-08-17
申请人： Steven J. Sanders , Jeffrey E. Lewis , Sorin Mosor , David A. Doheny , Norman Gerard Tarleton , Austin Taranta
发明人： Steven J. Sanders , Jeffrey E. Lewis , Sorin Mosor , David A. Doheny , Norman Gerard Tarleton , Austin Taranta
IPC分类号： G01C19/72
CPC分类号： G01C19/721
摘要： Systems and methods for environmentally insensitive high-performance fiber-optic gyroscopes are provided. In one embodiment, a loop closure electronics apparatus for a fiber optic gyroscope having an optical phase modulator characterized by a transfer function that includes an error component of at least second order is provided. The apparatus comprises: a first digital circuit that generates a digital bias modulation signal; a second digital circuit that generates a digital feedback signal; at least one digital-to-analog converter that produces an electrical signal that drives the phase modulator from the digital bias modulation signal and the digital feedback signal; and a compensator that includes an analog filter of at least second order and a digital filter of at least second order, wherein the analog filter and the digital filter pre-filter the electrical signal to compensate for the error component.
摘要翻译：提供了环境不敏感的高性能光纤陀螺仪的系统和方法。在一个实施例中，提供了一种用于光纤陀螺仪的闭环电子装置，其具有光学相位调制器，其特征在于包括至少二阶的误差分量的传递函数。该装置包括：产生数字偏置调制信号的第一数字电路; 产生数字反馈信号的第二数字电路; 至少一个数模转换器，其产生从所述数字偏置调制信号和所述数字反馈信号驱动所述相位调制器的电信号; 以及补偿器，其包括至少二阶的模拟滤波器和至少二阶的数字滤波器，其中所述模拟滤波器和所述数字滤波器对所述电信号进行预滤波以补偿所述误差分量。

5. 发明授权

US08542364B1 System to reduce gyroscopic errors with limited power supply quality in a fiber optic gyroscope 有权
标题翻译：系统在光纤陀螺仪中以有限的电源质量降低陀螺仪误差
公开(公告)号：US08542364B1
公开(公告)日：2013-09-24
申请号：US12640931
申请日：2009-12-17
申请人： Gregory W Keith , Derek Mead , Douglas E. Smith , Norman Gerard Tarleton
发明人： Gregory W Keith , Derek Mead , Douglas E. Smith , Norman Gerard Tarleton
IPC分类号： G01C19/72
CPC分类号： G01C19/726
摘要： A fiber optic gyroscope includes a light source, an optical coupler in optical communication with the light source, with the optical coupler configured to receive an optical signal from the light source, an optical modulator in optical communication with the optical coupler, and a fiber optic coil in optical communication with the optical modulator. A demodulator is configured to receive an optical signal from the optical coupler and convert the optical signal to an electrical signal. A loop closure electronics module is configured to receive the electrical signal from the demodulator. A bias modulator is responsive to an output from the loop closure electronics module and is configured to output a modulation signal to the optical modulator. A first crosstalk filter network is operatively coupled to the demodulator, and a second crosstalk filter network is operatively coupled to the bias modulator.
摘要翻译：光纤陀螺仪包括光源，与光源光通信的光耦合器，光耦合器被配置为从光源接收光信号，光调制器与光耦合器光学通信，以及光纤线圈与光调制器进行光通信。解调器被配置为从光耦合器接收光信号并将光信号转换成电信号。闭环电子模块被配置为从解调器接收电信号。偏置调制器响应于闭环电子模块的输出，并被配置为向光学调制器输出调制信号。第一串扰滤波器网络可操作地耦合到解调器，并且第二串扰滤波器网络可操作地耦合到偏置调制器。

6. 发明授权

US08294900B2 Systems and methods for resonator fiber optic gyroscope intensity modulation control 有权
标题翻译：谐振器光纤陀螺仪强度调制控制系统和方法
公开(公告)号：US08294900B2
公开(公告)日：2012-10-23
申请号：US12729660
申请日：2010-03-23
申请人： Lee K. Strandjord , Glen A. Sanders , Norman Gerard Tarleton
发明人： Lee K. Strandjord , Glen A. Sanders , Norman Gerard Tarleton
IPC分类号： G01C19/72
CPC分类号： G01C19/727
摘要： Systems and methods for improved resonator fiber optic gyroscope intensity modulation control are provided. In one embodiment, a resonant fiber optic gyroscope (RFOG) having a residual intensity modulation (RIM) controller comprises: an intensity modulator optically coupled to receive a light beam from a laser source modulated at a resonance detection modulation frequency; an optical tap device optically coupled to the intensity modulator; and a feedback servo coupled to the optical tap device and the intensity modulator, the demodulating feedback servo generating a sinusoidal feedback signal to the intensity modulator. The feedback servo adjusts an amplitude and phase of the sinusoidal feedback signal provided to intensity modulator based on a residual intensity modulation detected by the demodulating feedback servo.
摘要翻译：提供了改进谐振器光纤陀螺仪强度调制控制的系统和方法。在一个实施例中，具有残余强度调制（RIM）控制器的谐振光纤陀螺仪（RFOG）包括：光耦合的光强调制器，用于接收来自以谐振检测调制频率调制的激光源的光束; 与所述强度调制器光耦合的光学抽头装置; 以及耦合到光学抽头装置和强度调制器的反馈伺服器，解调反馈伺服器向强度调制器产生正弦反馈信号。基于由解调反馈伺服检测到的残余强度调制，反馈伺服调节提供给强度调制器的正弦反馈信号的幅度和相位。

7. 发明授权

US08149417B2 Synchronous radiation hardened fiber optic gyroscope 有权
标题翻译：同步辐射硬化光纤陀螺仪
公开(公告)号：US08149417B2
公开(公告)日：2012-04-03
申请号：US12694744
申请日：2010-01-27
申请人： Norman Gerard Tarleton , Stephan Enzone , David A. Doheny , Derek Mead
发明人： Norman Gerard Tarleton , Stephan Enzone , David A. Doheny , Derek Mead
IPC分类号： G01C19/72
CPC分类号： G01C19/72
摘要： A synchronous fiber optic gyroscope includes a light source, an optical coupler in optical communication with the light source, an optical modulator in optical communication with the coupler, and a fiber optic coil in optical communication with the modulator. A detector is configured to receive an optical signal from the coupler and convert the optical signal to an electrical signal. A loop closure signal processor has a first input configured to receive the electrical signal from the detector. A phase lock loop has an output operatively connected to a second input of the processor. A direct digital synthesizer is operatively coupled to an input of the phase lock loop, with the synthesizer configured to generate a low-frequency signal that is transmitted to the phase lock loop. The phase lock loop converts the low-frequency signal to a high-frequency signal that is transmitted to the second input of the processor, and the phase lock loop provides signal modulation that is synchronous with signal demodulation.
摘要翻译：同步光纤陀螺仪包括光源，与光源光通信的光耦合器，与耦合器光通信的光调制器和与调制器光通信的光纤线圈。检测器被配置为从耦合器接收光信号并将光信号转换成电信号。闭环信号处理器具有被配置为从检测器接收电信号的第一输入。锁相环具有可操作地连接到处理器的第二输入的输出。直接数字合成器可操作地耦合到锁相环的输入端，合成器被配置为产生传输到锁相环的低频信号。锁相环将低频信号转换为发送到处理器的第二输入端的高频信号，锁相环提供与信号解调同步的信号调制。

8. 发明授权

US08077322B2 Signal conditioning to provide optimum gain and noise reduction for resonator fiber optic gyroscopes 有权
标题翻译：信号调理，为谐振器光纤陀螺仪提供最佳的增益和降噪
公开(公告)号：US08077322B2
公开(公告)日：2011-12-13
申请号：US12415836
申请日：2009-03-31
申请人： Lee Strandjord , Norman Gerard Tarleton , Stephan Enzone
发明人： Lee Strandjord , Norman Gerard Tarleton , Stephan Enzone
IPC分类号： G01B9/02
CPC分类号： G01C19/727
摘要： A resonator fiber optic gyroscope includes a first light source configured to generate a light signal. A resonator element is configured to generate an optical signal based on the light signal. A photodetector is configured to generate a first electrical signal based on the optical signal. The first electrical signal includes an oscillating signal, a direct-current (DC) signal, an even-harmonic signal including components at even harmonics of the oscillating signal, and an odd-harmonic signal including components at odd harmonics of the oscillating signal. A filtering element is configured to attenuate the DC signal, at least one even-harmonic component, and an odd-harmonic component to produce a second electrical signal. An amplifier is configured to amplify the second electrical signal. An analog-to-digital converter (ADC) is configured to digitize the amplified second electrical signal.
摘要翻译：谐振器光纤陀螺仪包括被配置为产生光信号的第一光源。谐振器元件被配置为基于光信号产生光信号。光电检测器被配置为基于光信号产生第一电信号。第一电信号包括振荡信号，直流（DC）信号，包括振荡信号的偶次谐波分量的偶次谐波信号和包括振荡信号的奇次谐波分量的奇次谐波信号。滤波元件被配置为衰减DC信号，至少一个偶次谐波分量和奇次谐波分量以产生第二电信号。放大器被配置为放大第二电信号。模数转换器（ADC）被配置为数字化放大的第二电信号。

9. 发明申请

US20110181886A1 SIGNAL CONDITIONING TO PROVIDE OPTIMUM GAIN AND NOISE REDUCTION FOR RESONATOR FIBER OPTIC GYROSCOPES 有权
标题翻译：信号调节为谐振器光纤陀螺提供最佳增益和噪声降低
公开(公告)号：US20110181886A1
公开(公告)日：2011-07-28
申请号：US12415836
申请日：2009-03-31
申请人： Lee Strandjord , Norman Gerard Tarleton , Stephan Enzone
发明人： Lee Strandjord , Norman Gerard Tarleton , Stephan Enzone
IPC分类号： G01C19/72
CPC分类号： G01C19/727
摘要： A resonator fiber optic gyroscope includes a first light source configured to generate a light signal. A resonator element is configured to generate a optical signal based on the light signal. A photodetector is configured to generate a first electrical signal based on the optical signal. The first electrical signal includes an oscillating signal, a direct-current (DC) signal, an even-harmonic signal including components at even harmonics of the oscillating signal, and an odd-harmonic signal including components at odd harmonics of the oscillating signal. A filtering element is configured to attenuate the DC signal, at least one even-harmonic component, and an odd-harmonic component to produce a second electrical signal. An amplifier is configured to amplify the second electrical signal. An analog-to-digital converter (ADC) is configured to digitize the amplified second electrical signal.
摘要翻译：谐振器光纤陀螺仪包括被配置为产生光信号的第一光源。谐振器元件被配置为基于光信号产生光信号。光电检测器被配置为基于光信号产生第一电信号。第一电信号包括振荡信号，直流（DC）信号，包括振荡信号的偶次谐波分量的偶次谐波信号和包括振荡信号的奇次谐波分量的奇次谐波信号。滤波元件被配置为衰减DC信号，至少一个偶次谐波分量和奇次谐波分量以产生第二电信号。放大器被配置为放大第二电信号。模数转换器（ADC）被配置为数字化放大的第二电信号。

10. 发明授权

US07889351B2 Systems and methods for monitoring angle random walk 有权
标题翻译：监测角度随机游走的系统和方法
公开(公告)号：US07889351B2
公开(公告)日：2011-02-15
申请号：US12346354
申请日：2008-12-30
申请人： Lee K. Strandjord , Norman Gerard Tarleton , Darryl G. Busch
发明人： Lee K. Strandjord , Norman Gerard Tarleton , Darryl G. Busch
IPC分类号： G01C19/72
CPC分类号： G01C19/726
摘要： A gyroscope for determining an angular rate output. The gyroscope includes a first demodulator configured to demodulate an angular rate measurement at a first bias modulation frequency to determine the angular rate signal and a second demodulator configured to demodulate the angular rate measurement at a second bias modulation frequency to provide a signal with ARW information. The gyroscope further includes an ARW estimator that provides an output that is proportional to ARW that is then stored in a memory. The second bias modulation frequency is an even order harmonic of the first bias modulation frequency.
摘要翻译：用于确定角速率输出的陀螺仪。陀螺仪包括：第一解调器，被配置为以第一偏置调制频率解调角速率测量值以确定角速率信号;以及第二解调器，被配置为以第二偏压调制频率解调角速率测量值，以向ARW信息提供信号。陀螺仪还包括ARW估计器，其提供与ARW成比例的输出，然后存储在存储器中。第二偏置调制频率是第一偏置调制频率的偶次谐波。

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