Distance measurement apparatus
作者： Noriaki Shirai , Katsuhiro Morikawa
DOI:
关键词:
摘要: A forward electromagnetic wave is generated in accordance with a succession of pseudo random noise code signals. An echo caused by reflection the at an object converted into received signal. Direct-current and low-frequency components are removed from signal to generate filtering-resultant The compared preset decision reference voltage binary sampled data. Calculation made as correlation between data distance computed on basis calculated correlation. repetitively produce signals during surplus time covering stabilization taken stabilize direct-current level.
google.com.mx 参考文章(43)
Yutaka Kawata, Takuya Kusaka, Hiroshi Imada, Distance measurement method making use of electromagnetic wave and system therefor ,(1984)
John E. Nettleton, Dallas N. Barr, Brian C. Redman, Adjustable near infrared rangefinder illuminator ,(1992)
Harry Urkowitz, Complementary-sequence pulse radar with matched filtering following doppler filtering ,(1991)
Dieter R. Lohrmann, Herbert Dropkin, Random binary modulated sensor ,(1989)
John Christopher Reed, Continuous wave wideband precision ranging radar ,(1996)
Edmund S. Zavada, Gregory Schluge, Spread spectrum phase locked loop with phase correction ,(1990)
Hartmut Schmidt, Method for calibration in level measurement ,(1996)
Takayuki Yanagisawa, Yoshihito Hirano, Kimio Asaka, Coherent laser radar device ,(2001)
Jochen Ziegenbein, Karlhans Rosenbach, Method and device for determining target speed and distance with frequency modulated pulses ,(1994)
Bernhard Michalski, Kenneth L. Perdue, Method and arrangement for electromagnetic wave distance measurement by pulse transit time method ,(1998)