Title:
SPEED RENEWAL METHOD
Document Type and Number:
Japanese Patent JP2674403
Kind Code:
B2
Abstract:
PURPOSE: To reduce the influence to the speed owing to a measuring error of radar even in a high data rate researching and to prevent a deterioration of the speed renewal, by carrying out the speed renewal to the speed prior to the time corresponding to the data rate of a standard researching, and to reduce the renewal interval of the speed and to improve the following property of the speed, by renewing the speed at every plot.
CONSTITUTION: In the speed renewal process in the flight path tracking process of a radar device, plots A21 to A30 which are the position data of objects detected by the radar research are maintained together with the detecting times t21 to t30, and the speed renewal using the plots A21 to A30 are carried out not to the speeds at the plot immediately before, but to the speed at the plot before 12 seconds which is the data rate of a standard recearch, so as to obtain the renewed speeds B21 to B30.
Inventors:
Kataoka Yukari
Application Number:
JP35104291A
Publication Date:
November 12, 1997
Filing Date:
December 11, 1991
Export Citation:
Assignee:
NEC
International Classes:
G01S13/58; G01S13/66; (IPC1-7): G01S13/58; G01S13/66
Attorney, Agent or Firm:
Sakai Hiromi