专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP1906145A2 Digital intensity suppression for reducing vibration and radiation sensitivity in a fiber gyroscope 审中-公开
标题翻译：数字强度抑制，以减少光纤陀螺仪的振动和辐射灵敏度
公开(公告)号：EP1906145A2
公开(公告)日：2008-04-02
申请号：EP07117207.6
申请日：2007-09-25
申请人： Honeywell International Inc.
发明人： Greening, Thomas C.
IPC分类号： G01C19/72
CPC分类号： G01C19/722
摘要： A technique for operating an interferometric fiber optic gyroscope (IFOG) exploits digital intensity suppression to improve gyro performance. The IFOG [200] includes an optical portion configured to provide an optical signal [102], a photodetector [206] configured to convert the optical signal to a photodctcctor output signal [217] and an electronics portion [207] configured to provide a gyro output [260] based upon the photodetector output signal. The photodetector output signal is quantized [214] to create a digitized representation [241] of the optical signal. An intensity scaling value [245] is determined based upon the digital representation of the optical signal, and the photodetector output signal is adjusted based upon the intensity scaling value to create a scaled photodetector output signal. The digital representation of the optical signal is then digitally reconstructed [248] as a function of the scaled photodetector output signal and the intensity scaling value. From the reconstructed signal, a demodulation technique [250] is applied that removes the intensity-sensitivity while preserving the sensitivity to rotation rate. The gyro output or servo feedback [262] in a closed-loop system is thereby based upon the intensity-suppressed demodulated digital representation of the reconstructed optical signal.
摘要翻译：一种用于在干涉光纤陀螺仪（IFOG）操作技术利用数字强度抑制到提高陀螺仪的性能。所述光纤陀螺[200]包括在被配置为提供到光信号[102]，光检测器[206]被配置为将光信号转换成一个photodctcctor输出信号[217]和在电子器件部分光学部分[207]被配置为提供一个陀螺仪输出[260]基于所述光电检测器输出信号。光电检测器输出信号被量化[214]以产生光信号的数字化表示[241]。的强度定标值[245]是确定性的开采基于光信号的数字表示，并基于所述强度标定值来创建缩放的光电检测器输出信号调节所述光电检测器输出信号。所述光信号的所述数字表示然后数字重建[248]作为所述缩放光电检测器输出信号的函数和强度标定值。从重建的信号，解调技术[250]是应用做删除强度灵敏度，同时保持于旋转速度的敏感性。在闭环系统中的陀螺仪输出或伺服反馈[262]由此在所述重构的光信号的强度抑制解调的数字表示基于。

2. 发明公开

EP1973231A1 Systems and methods for improving data converters 审中-公开
标题翻译： Systeme und Verfahren zur Verbesserung von Datenkonvertern
公开(公告)号：EP1973231A1
公开(公告)日：2008-09-24
申请号：EP08102643.7
申请日：2008-03-15
申请人： Honeywell International Inc.
发明人： Newlin, Matthew P. , Standjord, Lee K. , Greening, Thomas C. , Keith, Gregory W.
IPC分类号： H03M1/06 , G06F7/58
CPC分类号： H03M1/0641 , G06F7/588 , H03M1/201 , H03M1/661
摘要： Systems and methods for improving efficiency of a data converter. An example method generates a noise signal, alters the spectrum of the noise signal based on operation of an associated data converter, and supplies the altered spectrum noise signal to the associated data converter. The data converter is a digital-to-analog converter or an analog-to-digital converter. The altered spectrum noise signal is notched at frequencies of interest. The spectrum is altered by sending a signal generated by a random number generator to a delay device and adding the output of the delay device from the output of the random number generator. Also, the spectrum is altered by seeding first and second identical random number generators, delaying the operation of the first random number generator, and adding the output of the delayed first random number generator from the second random number generator.
摘要翻译：提高数据转换器效率的系统和方法。示例性方法产生噪声信号，基于相关联的数据转换器的操作来改变噪声信号的频谱，并将改变的频谱噪声信号提供给相关联的数据转换器。数据转换器是一个数模转换器或一个模拟 - 数字转换器。改变的频谱噪声信号在感兴趣的频率处被切断。通过将随机数发生器产生的信号发送到延迟装置并且从随机数发生器的输出添加延迟装置的输出来改变频谱。此外，通过播种第一和第二相同的随机数发生器来改变频谱，延迟第一随机数发生器的操作，并且从第二随机数发生器添加延迟的第一随机数发生器的输出。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式