JPS5473591A - Manual wake tracking system - Google Patents
Manual wake tracking systemInfo
- Publication number
- JPS5473591A JPS5473591A JP14128977A JP14128977A JPS5473591A JP S5473591 A JPS5473591 A JP S5473591A JP 14128977 A JP14128977 A JP 14128977A JP 14128977 A JP14128977 A JP 14128977A JP S5473591 A JPS5473591 A JP S5473591A
- Authority
- JP
- Japan
- Prior art keywords
- time
- circuit
- bearing
- antenna
- signal
- 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
Links
Abstract
PURPOSE: To obtain the stable time matched for the apperance of the video being the actual position assignment by taking the difference between the current time and that time and performing wake tracking from the time of that difference and the wake data indicated manually.
CONSTITUTION: The position assigned by a PPI position indicator 1 is converted to a digital XY signal by an XY signal generating circuit 2. This signal is then outputted to a data synchronizing register 9 and a bearing calculation circuit 7. On the other hand, the output of a clock oscillator 3 is counted with a time counter circuit 4, by which the time is made. This time is outputted to a bearing corresponding time memory circuit 8 and is stored in the bearing corresponding signal time memory circuit 8 at the memory address corresponding to the bearing data of an antenna bearing signal generating circuit 6 in synchronization to the rotation of the antenna. Hnece, the time when the antenna is passed with the position on the PPI assigned by the apparatus 1 as final is obtained as the output of the circuit 8 and is synchronously sampled together with the assigned XY coordinates and the current time in a register 9. When a wake tracking assignment unit 6 is operated, the data are inputted to a tracking calculation circuit 10 and tracking calculation is performed by using the antenna simultaneous time not being the current time.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14128977A JPS5473591A (en) | 1977-11-24 | 1977-11-24 | Manual wake tracking system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14128977A JPS5473591A (en) | 1977-11-24 | 1977-11-24 | Manual wake tracking system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5473591A true JPS5473591A (en) | 1979-06-12 |
Family
ID=15288414
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14128977A Pending JPS5473591A (en) | 1977-11-24 | 1977-11-24 | Manual wake tracking system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5473591A (en) |
-
1977
- 1977-11-24 JP JP14128977A patent/JPS5473591A/en active Pending
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