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公开(公告)号：KR101078387B1
公开(公告)日：2011-11-01
申请号：KR1020090039087
申请日：2009-05-06
Applicant: 국방과학연구소
Abstract: 본발명은광섬유자이로스코프의사냑(sagnac) 간섭계시뮬레이터, 사냑간섭계시뮬레이터및 사냑간섭계의시뮬레이션방법에관한것으로, 광섬유자이로스코프시뮬레이터는복수의광들이광섬유자이로스코프의광섬유고리를따라이동함에따라발생하는시간지연에대응하도록디지털신호중 적어도일부의전송시간을지연시키는시간지연생성부와, 상기광섬유자이로스코프의회전에의해발생하는상기광들의위상차에대응하는회전정보를상기시간지연이생성된디지털신호에더하는회전정보부가부, 및상기회전정보가더해진디지털신호에대하여코사인연산을수행하고, 상기연산에의한결과에대응하는디지털출력신호를생성하는연산부를포함한다. 이를통하여본 발명은설계변수의변화에따른사냑(sagnac) 간섭계의성능, 민감도등을용이하게평가할수 있다.
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公开(公告)号：KR1020100120327A
公开(公告)日：2010-11-16
申请号：KR1020090039087
申请日：2009-05-06
Applicant: 국방과학연구소
Abstract: PURPOSE: A simulator for a sagnac interferometer of an optical fiber gyroscope and a simulation method of a sagnac interferometer are provided to perform an optimum design and to detect and correct a sensor error. CONSTITUTION: A simulator for a sagnac interferometer of an optical fiber gyroscope comprises a time delay generating unit(210), a rotation information adding unit(220), and a calculation unit(230). The time delay generating unit delays transfer time of parts of digital signals. The rotation information adding unit adds rotation information to the generated digital signals. The calculation unit performs cosine calculation about the digital signals and produces a digital output signal corresponding to the calculation result.
Abstract translation: 目的：提供光纤陀螺仪的sagnac干涉仪模拟器和Sagnac干涉仪的仿真方法，以执行最佳设计并检测和校正传感器误差。 构成：用于光纤陀螺仪的锯齿干涉仪的模拟器包括时间延迟生成单元（210），旋转信息添加单元（220）和计算单元（230）。 延时发生单元延迟数字信号部分的传送时间。 旋转信息添加单元向生成的数字信号添加旋转信息。 计算单元对数字信号执行余弦计算，并产生与计算结果对应的数字输出信号。
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公开(公告)号：KR1020100118872A
公开(公告)日：2010-11-08
申请号：KR1020090037802
申请日：2009-04-29
Applicant: 국방과학연구소
Abstract: PURPOSE: A phase modulation stabilization method of a fiber optic gyroscope, using the error correction, is provided to accurately detect phase modulation amplitude errors. CONSTITUTION: A phase modulation stabilization method of a fiber optic gyroscope is as follows. The light, generated from a light source, adds a phase modulated signal to vary the phase on first and second phase sections(S100). The light is divided to toward in different ways in order to have the phase difference generated by the rotation of gyroscope(S200). The respective advanced light is united and the combined light is changed into optical signals(S410). First and second output mean values corresponding to the first and second phase sections, respectively are calculated from the light signals(S420). The phase modulated amplitude of the phase modulated signal is corrected by using the difference of the first and the second output mean value(S500).
Abstract translation: 目的：提供使用误差校正的光纤陀螺仪的相位调制稳定方法，以准确检测相位调制幅度误差。 构成：光纤陀螺仪的相位调制稳定方法如下。 从光源产生的光添加相位调制信号以改变第一和第二相位部分上的相位（S100）。 为了使陀螺仪的旋转产生相位差，将光分成不同的方向（S200）。 相应的先进光合并，组合光变成光信号（S410）。 从光信号中分别计算与第一和第二相位段对应的第一和第二输出平均值（S420）。 通过使用第一和第二输出平均值的差来校正相位调制信号的相位调制幅度（S500）。
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公开(公告)号：KR101069244B1
公开(公告)日：2011-10-04
申请号：KR1020090037802
申请日：2009-04-29
Applicant: 국방과학연구소
Abstract: 본발명은광섬유자이로스코프의위상변조방법및 광섬유자이로스코프에관한것으로, 광섬유자이로스코프의위상변조방법은광원에서발생한광이제1 및제2 위상구간에서위상이변조되도록상기광에위상변조신호를가하는단계와, 상기광을분리하고상기분리된광이자이로스코프의회전에의하여발생하는위상차를가지도록서로다른방향으로각각진행시키는단계와, 상기각각진행된광을결합하고상기결합된광을광 신호들로변환하는단계와, 상기광 신호들로부터상기제1 및제2 위상구간에각각대응하는제1 및제2 출력평균값을산출하는단계, 및상기제1 및제2 출력평균값의차이를이용하여상기위상변조신호의위상변조진폭을교정하는단계를포함한다. 이를통하여본 발명은광섬유자이로스코프에서위상변조진폭을안정화한다.
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