SU813345A1 - Device for displaying coordinate information - Google Patents

Description

one

The device relates to radar and can be used in equipment for processing radar information.

A coordinate display device is known comprising a series-connected analog-to-digital converter, a first buffer memory unit and a switch, whose input is connected to the information input of a storage unit, a clock generator, an aging code generator, a correlator and serially connected second buffer memory unit and a digital-analog converter. , the output of the first block of buffer memory is connected to the first input of the correlator, the output of the clock pulse generator is connected with the corresponding inputs of the storage unit and the aging code generator, the outputs of the correlator and the aging code generator, respectively, are connected to the second and third inputs of the switch 1.

However, the known device does not provide sufficient reliability and quality of the displayed information.

The purpose of the invention is to increase the reliability and quality of the displayed information.

For this, a known coordinate information display device containing serially connected analog-to-digital converter, a first buffer memory block and a switch, the output of which is connected by the information input of the memory block, clock generator, corrector of the aging code, correlator and serially connected second block a buffer memory and a digital 5 analog converter; the output of the first block of the buffer memory is connected to the first input of the correlator; the output of the clock generator is connected to the corresponding inputs

0 of the storage unit and the aging code generator, the outputs of the correlator and the aging code generator are connected to the second and third inputs of the switch, respectively, there are 5, therefore connected, target recording driver, counter and command generator, and the start pulse 0 switching unit information update, input

which is connected to the output of the first bit of the block memory, and the output is connected to the counter input, the input of the target recording feature generator is connected to the output of the aging code generator, the output of the command generator is connected to the control input of the output switch of the memory block, the inputs to which are connected with the corresponding outputs of the storage unit, and the output is connected to the input of the second block of the buffer memory, with the second inputs of the correlator and the aging code generator and the fourth input of the switch.

The drawing shows a block diagram of the device.

The coordinate information display device contains analog-digital converter 1, first buffer memory unit 2, switch 3, storage unit 4, clock generator 5, aging code generator 6, correlator 7, second buffer memory unit 8, digital-to-analog converter 9, shaper 10 of the target recording feature, counter 11, shaper 12 commands, switch 13 of the outputs of the storage unit, block 14 for extracting the pulse of the start of the information update cycle.

The device works as follows.

The incoming target information is converted by analog-to-digital converter 1 to digital form. Through the first block 2 of the buffer memory and the switch 3, this coordinate information is recorded in the storage unit 4 simultaneously with the aging code, which is fed to the corresponding input of the switch 3 from the output of the aging code generator 6. Recorded in the storage unit 4 by the action of clock pulses coming from the output of the generator 5 clock pulses, the information is pushed in the storage unit 4 to its output. The storage unit 4 has a series of equitable outputs switched by the switch 13 of the storage unit from the output of the switch 13 of the information storage unit through the second buffer storage unit and the digital-to-analogue converter 9 is output to the device and displayed on the indicator device screen. At the same time, from the output of the switch 13 of the outputs of the storage unit, information is supplied to the corresponding input of the switch 3 for a new entry in the storage unit 4. With the new entry, the aging code generator 6 reduces the aging code accompanying the coordinate information by one. The output of the former b code of the aging code is also connected to the input

a generator 10 of the target recording feature, which generates a signal indicating that the target information has been recorded in the storage unit 4. The counter 11 counts these signals in each regeneration cycle. 5 The installation of the counter 11 and the status is carried out at the beginning of each cycle by the pulse extraction unit 14 of the start of the information update cycle. The input of this block is connected to the output of the first bit of the memory block 4. The selection of the frequency of clock pulses generated by the generator of 5 clock pulses is determined by the speed of the indicator device, and their period is set to the minimum time for writing one target marking element in the indicator device. The correlator 7 compares information about incoming targets with information in storage unit 4, in the case of correlation, the information in the corresponding bit of the storage device is updated simultaneously with the update of the corresponding aging code, in case of its absence, the information is recorded in the free bit of the storage unit 4, In one regeneration cycle, all targets recorded in the storage unit

4 should be displayed on the screen

 indicator device once. The duration of this cycle is chosen for reasons of good image quality. In case of increasing the number of targets in the field of view to the value of /

5 in which their display by the indicator device becomes impossible at the selected regeneration frequency, it is advisable to reduce this frequency, which increases the number of cycles in

0 cycle. The volume of the storage unit 4 also increases. To do this, the transmitter 12 commands using the counter 11 issues a command to the switch 13 of the outputs of the storage unit,

with which, in turn, switches the outputs of the storage unit 4, thereby increasing its volume.

Thus, the proposed device allows reproducing all targets with the same intensity, which increases the reliability and quality of the displayed information.

Claims (1)

Invention Formula A display device for coordinate information, containing series-connected analog-to-digital converter, the first block of buffer memory and switch, the output of which is connected to the information input of the storage unit, clock generator, aging code generator, correlator and serially connected second block of buffer memory and digital analog converter, output of the first block of buffer memory connected to the first input of correlator, output the clock generator is connected to the corresponding inputs of the storage unit and the aging code generator, the outputs of the correlator and the old code generator are connected respectively to the second The second and third inputs of the switch, characterized in that, for the purpose of reliability and quality of the displayed information, the sequentially connected target record driver, the counter and command driver, as well as the output switch of the memory storage unit and the input pulse selection block were entered. which is connected to the output of the first bit of the storage unit, and the output to the installation input of the counter, the input of the target recording feature generator is connected to the output of the aging code generator The output of the command driver is connected to the control input of the output switch of the storage unit, the inputs of which are connected to the corresponding outputs of the storage unit, and the output connected to the input of the second buffer memory unit, to the second inputs of the corrector and quarantor of the switch code. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 683534, cl. G 01 S 7/06, 1977 (prototype).