JPH01291184A - Target display device for accurate measuring radar equipment - Google Patents

Abstract

PURPOSE:To easily discriminate a video signal by extracting target data from output signal of an accurate measuring radar and a search radar and displaying its target data together with a video signal of the accurate measuring radar. CONSTITUTION:From a search radar equipment 1, processing target data is generated by a beacon signal of a secondary monitor radar and flight plan information. Also, from an accurate measuring radar equipment 2, an accurate measuring radar video signal is outputted. Both these signals are supplied to a comparator 3, and when an azimuth and distance information coincide, a coincidence signal is outputted. This coincidence signal and an output signal of the equipment 1 are supplied to a data selector 4, and the output signal of the equipment 1 corresponding to information of the coincidence signal is selected. Subsequently, the signal which has been outputted from the selector 4 is supplied to an accurate measuring instructing part 6 after a signal for showing a display position has been added by a display control part 5. Also, to the instructing part 6, the video signal from the equipment 2 is supplied in advance, and its video signal and a target signal from the control part 5 are displayed simultaneously.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a target display device for a precision radar device used for landing guidance control.

[Prior Art] Conventionally, this type of landing guidance control uses a precision intrusion radar device to display reflected signals from an aircraft, which are radar information, on the screen of a precision measurement instruction device.

Controllers observe this display, communicate with pilots via radio telephone, identify targets, and guide them toward the runway.

[Problems to be Solved by the Invention] However, since such conventional devices display radar reflection signals from aircraft, controllers constantly communicate with pilots while looking at the image on the screen, and are required to monitor the movement of the image. Since it is necessary to identify one of the multiple images of the aircraft displayed on the screen based on the communication results, it is not only difficult to identify the aircraft, but also guide multiple aircraft to intrude at the same time. The problem was that it was difficult to

[Means for Solving the Problems] In order to solve such problems, the present invention generates processed target data from the output signal of the search radar and the output signal of the precision radar, and displays this together with the video signal. This is how it was done.

[Function] A matching signal is output for the output signal of the precision radar and the output signal of the search radar whose angle information and distance information match, and a target signal is output from the matching signal and the output signal of the search radar. The target signal is displayed together with the video signal.

[Example] FIG. 1 is a block diagram showing one embodiment of the present invention.

In the figure, a search radar device 1 generates processing target data based on a beacon signal from a secondary surveillance radar and flight plan information. This processed target data includes target data, azimuth, and distance information for the aircraft being searched. The output signal of the precision radar device 2 includes a precision radar video signal, the azimuth angle of the video signal, and distance information. Both signals are supplied to a comparator 3, and if the azimuth angle and distance information match, a match signal is output.

This coincidence signal and the output signal of the search radar device 1 are supplied to the data selector 4, and the output signal of the search radar device 1 corresponding to the information of the coincidence signal is selected. Data selector 4
A signal for indicating the display position is added to the signal outputted from the display control unit 5 by the display control unit 5, and the signal is supplied to the precise measurement instruction unit 6. On the other hand, the precise measurement instruction section 6 is supplied with a video signal from the precise measurement radar device 2 . Therefore, the precise measurement instruction section 6 receives the video signal from the precision measurement radar device 2 and the display control section 5.
Both target signals from are displayed at the same time.

FIG. 2 is a diagram showing this display state, where symbol 7 is a video signal of the precision radar device 2, and symbol 8 is target information. By looking at this video, the controller can identify which of the images on the screen are aircrafts with the name ABC and which are the aircraft with the name DEF.
aircraft can be easily recognized. For this reason, in order to recognize an aircraft with the symbol ABC as in the past, for example, while communicating with the aircraft, the symbol AB is recognized based on the movement of the image.
There is no need to estimate the aircraft with symbol C, and the aircraft with symbol ABC can be recognized just by looking at the screen. Also, all aircraft on the screen have their target information displayed, so
Even if multiple aircraft are displayed on the screen, each aircraft can be easily recognized.

[Effects of the Invention] As explained above, the present invention extracts target data from the output signal of the precision radar and the output signal of the search radar, and displays the target data together with the video signal of the precision radar. Since the video signal and the target are both displayed on the screen, the video signal can be easily identified just by looking at the screen.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention. FIG. 2 is a diagram showing a display screen. 1...Search radar device, 2...Precision radar device, 3...Comparator, 4...Data selector, 5...
...display control section, 6..accurate measurement instruction section, 7..
Video, 8...Target information.

Claims (1)

[Claims] A search radar device that generates processed target data including azimuth and distance information of a control aircraft based on a beacon signal of a secondary surveillance radar and flight plan information, and a video signal that includes azimuth and distance information of a control aircraft. a comparator that outputs a matching signal when the azimuth angle and distance information data match between the precision measurement radar device output signal and the search radar device output signal; and a search radar corresponding to the matching signal. The accuracy is calibrated from a data selector that outputs a signal, a display control section that adds display position information to the output signal of the data selector, and a precision measurement instruction section that displays both the display control section output signal and the precision measurement radar output signal. Target display device for surveying radar equipment.