| 1. | Si - based thermal - optical resonant - cavity tunable filter 共振腔型可调谐滤波器 |
| 2. | The rf front - end structure is predigested greatly due to using the electronically tunable filters 由于电调滤波器的选用,降低了射频前端系统的复杂度,射频结构得以大大简化。 |
| 3. | If certain wavelength can through the tunable filter and others are cut off , the data can be got correctly 这种滤光片允许一个波长通过,阻止所有其它波长通过,这样就能准确无误的恢复数据。 |
| 4. | If the tunable receiver is required , the filter must be tunable . so basing on diversity theory , there are diversified tunable filters 如果系统需要波长可调谐接收机,那么滤光片必须是可调谐的。 |
| 5. | Contrast study of some ty pical demodulation methods is made in this paper and method of fiber fabry - perot tunable filter ( ffp - tf ) is confirmed 针对以上问题,采用了一种基于dsp和cpld的信号处理卡,实现了数据的实时高速处理和传输。 |
| 6. | Among the tunable filter technologies of optical fiber grating sensors , the peak method is an usual way , but it has poor precision and the result is unstable 摘要在光纤光栅传感悬臂梁调谐滤波技术中,峰值法进行波长检测误差大,精度低,测量结果不稳定。 |
| 7. | Most of today ’ s demodulation techniques rely on optical filtering method , such as bulk optical edge filters , scanning fiber fabry - perot filters , wdm fiber couplers , acousto - optic tunable filters and mach - zehnder filters 目前,以布喇格光纤光栅( fbg : fiberbragggrating )为传感器件的传感器已成为研发主流。 |
| 8. | Integrated acoustic - optic tunable filter ( iaotf ) with its high performance would have been applied universally and widely in oadm . in this paper , firstly we introduce the actuality of oadm 本文首先介绍了oadm的现状,并针对传统用于oadm系统的aotf器件的缺点,提出了一种新型结构的集成光学可调谐共线声光滤波器( iaotf ) |
| 9. | Recently , much attention has been paid to the thin films of tunable dielectric materials for their applications in microwave agile devices , such as phase shifters , tunable filters , and voltage - controlled oscillators ( vcos ) 随着导弹等快速进攻性武器的发展,对雷达的功能提出了许多新的要求。采用机械扫描方式的天线已很难适应新的作战要求。 |
| 10. | So this scheme shows some potentials of the practical application . in summary , the method and results described in this thesis are conducive to the advancement and applications of fiber grating sensors and techique of tunable filtering with cantilever beam 总之,本论文的研究工作对于光纤bragg光栅传感和悬臂梁调谐这两种技术的进步、发展和实用化,具有重要的现实意义。 |