Absolute Coding Electronic Theodolite的用法和样例：
- The measuring principle of large curved surface measurement system is intersection measurement of electronic theodolite.
- As having advantages such as littler inserting loss, better wavelength selection and absolute coding, FBG has bright prospects of applications in fiber communication and sensing.
- Monitoring contents are verticality and horizontality of support beam, which are monitored by laser plumb instrument and electronic theodolite separately.
- The demodulation in distributed sensor system is a difficulty. The optical wavelet filter is designed to improve imbalanced and nonlinear optical signal efficiently and the optical wavelength absolute code is completed.
针对分布式传感系统中的解调问题 ,设计了光学小波滤波器 ,有效地改善了非平衡、非线性光学信号的干扰 ,实现了光学波长绝对编码。