JPS5744870A - Double sweep picture display system - Google Patents

Double sweep picture display system

Info

Publication number
JPS5744870A
JPS5744870A JP55119381A JP11938180A JPS5744870A JP S5744870 A JPS5744870 A JP S5744870A JP 55119381 A JP55119381 A JP 55119381A JP 11938180 A JP11938180 A JP 11938180A JP S5744870 A JPS5744870 A JP S5744870A
Authority
JP
Japan
Prior art keywords
memory
radar
picture
radar echo
ppi
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP55119381A
Other languages
Japanese (ja)
Inventor
Yoshizo Hagino
Shuichi Hashimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Radio Co Ltd
Original Assignee
Japan Radio Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Japan Radio Co Ltd filed Critical Japan Radio Co Ltd
Priority to JP55119381A priority Critical patent/JPS5744870A/en
Publication of JPS5744870A publication Critical patent/JPS5744870A/en
Pending legal-status Critical Current

Links

Landscapes

  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To prevent a PPI radar picture from disappearing, by a method wherein radar echo signals are stored in a memory and read reversely during retrace time in order to make pictures overlap with each other in reverse sweep. CONSTITUTION:The radar echo data stored in an analog memory 9 are sampled and temporarily stored in a digital memory 10. The content of said memory 10 is reversely read out by means of the reverse readout pulse generated during retrace time by means of a timing signal generator 11 in accordance with a trigger pulse generator 1, and a radar echo picture in reverse sweep is displayed on a PPI scope 8 in an overlapping manner. Accordingly, the radar picture is prevented from disappearing from the PPI scope even when the radar echo signal is interrupted because of another picture display.
JP55119381A 1980-08-29 1980-08-29 Double sweep picture display system Pending JPS5744870A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55119381A JPS5744870A (en) 1980-08-29 1980-08-29 Double sweep picture display system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55119381A JPS5744870A (en) 1980-08-29 1980-08-29 Double sweep picture display system

Publications (1)

Publication Number Publication Date
JPS5744870A true JPS5744870A (en) 1982-03-13

Family

ID=14760095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55119381A Pending JPS5744870A (en) 1980-08-29 1980-08-29 Double sweep picture display system

Country Status (1)

Country Link
JP (1) JPS5744870A (en)

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