Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Mei Quan Liu"'
Publikováno v:
Applied Mechanics and Materials. :1768-1771
Passive time difference detection method is distance, high speed and good concealment which has broad military application prospects. One of the key technologies for passive detection is to extract the time lag through effective signal processing. Re
Publikováno v:
Advanced Materials Research. :803-807
Different optical models were adopted to fit theoretical simulation curves of a SiO2 ultra-thin film with a density of 2.2 g/cm3 and a thickness of 6nm grown on Si wafer. The results indicate that thickness obtained from fitting decrease linearly wit
Publikováno v:
Advanced Materials Research. :1082-1085
A Compact and precise gonio-stage for Grazing incidence X-ray absorption fine structure (GIXAFS) measurement is presented in this paper. The gonio-stage can provide a range of 0-35mrad and a resolution of 0.012mrad. An expert alignment can be realize
Publikováno v:
Applied Mechanics and Materials. 441:393-396
In the application of magnetic flux leakage (MFL) nondestructive testing, the signal will be disturbed by varying noises. It seriously affects the accuracy of detection judgment result. This paper describes the design of least mean square (LMS) noise
Publikováno v:
2013 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices.
It's difficult to distinguish the echo superimposed signal between Thin layer interface up and down when measuring thickness by ultrasonic method. In order to solve this problem, ultrasonic signal processing methods is used to extract characterizatio
Publikováno v:
2013 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices.
When receiving electromagnetic guided wave, because of the impact of the space and the environment, the receiving signal often has a lot of noise interference signals. Article for better defect feature extraction reaction signal the lifting wavelet t