CN209765037U

CN209765037U - signal simulator

Info

Publication number: CN209765037U
Application number: CN201920233459.4U
Authority: CN
Inventors: 陈德平
Original assignee: Nanjing Ruide Communication Technology Co Ltd
Current assignee: Nanjing Ruide Communication Technology Co Ltd
Priority date: 2019-02-25
Filing date: 2019-02-25
Publication date: 2019-12-10
Anticipated expiration: 2029-02-25

Abstract

The utility model discloses a signal simulator, which comprises a shell, wherein a clock module, a main control board, a power module, a first frequency synthesis module, a second frequency synthesis module, a third frequency synthesis module, a fourth frequency synthesis module and a fifth frequency synthesis module are arranged in the shell; the power supply module is connected with the clock module, the main control board, the first frequency synthesis module, the second frequency synthesis module, the third frequency synthesis module, the fourth frequency synthesis module and the fifth frequency synthesis module, and is electrically connected with 220V alternating current to supply power to each module; the input ends of the first frequency synthesis module, the second frequency synthesis module, the third frequency synthesis module, the fourth frequency synthesis module and the fifth frequency synthesis module are connected with the main control board through a single-pole five-throw switch, signals of the frequency synthesis modules are output to the middle, and the signals are transmitted to the antenna horn after being modulated. The utility model discloses output signal comprises 5 fixed points frequently, can carry out the switching of continuous wave mode and pulse mode. The output power of the signal is stable and has good directivity.

Description

Signal simulator

Technical Field

the utility model relates to a signal simulator belongs to radar detection technical field.

Background

At present, a known simulator provides complex electromagnetic environment signals such as targets, clutter and electronic interference under an external field condition for a tested radar, and realizes various performance tests of the radar. The existing simulator is generally separated from the antenna and connected with the simulator by a radio frequency cable. This facilitates achieving good electromagnetic compatibility characteristics. The disadvantages of this method are large volume, not easy to carry and inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The purpose of the invention is as follows: in order to overcome the not enough that exists among the prior art, the utility model provides a signal simulator, this simulator output signal is by 5 fixed dot-frequencies constitute, can carry out the switching of continuous wave mode and pulse mode, and the output of signal is stable to possess good directionality.

The technical scheme is as follows: in order to solve the technical problem, the utility model discloses a signal simulator, its characterized in that: the intelligent frequency synthesizer comprises a clock module, a main control board, a power module, a first frequency synthesizer module, a second frequency synthesizer module, a third frequency synthesizer module, a fourth frequency synthesizer module and a fifth frequency synthesizer module;

The power supply module is connected with the clock module, the main control board, the first frequency synthesis module, the second frequency synthesis module, the third frequency synthesis module, the fourth frequency synthesis module and the fifth frequency synthesis module, and is electrically connected with 220V alternating current to supply power to each module;

The clock module is respectively connected with the main control board, the first frequency comprehensive module, the second frequency comprehensive module, the third frequency comprehensive module, the fourth frequency comprehensive module and the fifth frequency comprehensive module and provides periodic pulses for the whole system;

And signals of the first frequency synthesis module, the second frequency synthesis module, the third frequency synthesis module, the fourth frequency synthesis module and the fifth frequency synthesis module are output to a single-pole five-throw switch, and the signals are transmitted to the antenna horn after being modulated.

Preferably, the first frequency synthesis module, the second frequency synthesis module, the third frequency synthesis module, the fourth frequency synthesis module and the fifth frequency synthesis module all include a phase-locked loop, an amplifying circuit, a controllable attenuator and a filter, which are connected in sequence, and the phase-locked loop, the amplifying circuit, the controllable attenuator and the filter are all connected with the power control circuit.

Preferably, the power module comprises a power filter, a power switch, a secondary power supply and a fuse, the 220V alternating current is filtered by the power filter, then sequentially passes through the power switch and the fuse, and is transmitted to the secondary power supply, and the secondary power supply provides power for the main control panel.

Preferably, a clock warning lamp, a first frequency comprehensive warning lamp, a second frequency comprehensive warning lamp, a third frequency comprehensive warning lamp, a fourth frequency comprehensive warning lamp, a fifth frequency comprehensive warning lamp, a modulation warning lamp and a power supply warning lamp are arranged on the shell, and the clock warning lamp, the first frequency comprehensive warning lamp, the second frequency comprehensive warning lamp, the third frequency comprehensive warning lamp, the fourth frequency comprehensive warning lamp, the fifth frequency comprehensive warning lamp, the modulation warning lamp and the power supply warning lamp are all in signal connection with the main control panel.

Has the advantages that: the utility model discloses a signal simulator has following advantage:

1) Modules such as a signal source, a power amplifier, a control module, an antenna and a power supply are integrated, and a portable integrated box-type structure can be manufactured;

2) the equipment has better portability, small volume, light weight and easy operation and carrying;

2) The equipment has good testability and reliability requirements, good maintainability and accessibility and perfect BIT design;

3) The output signal of the device consists of 5 fixed dot frequencies, and the continuous wave mode and the pulse mode can be switched. The output power of the signal is stable and has good directivity.

4) the equipment has good electromagnetic compatibility and can adapt to complex electromagnetic environment.

5) and a standard tripod interface is installed at the bottom of the case, so that the erection is quick.

Drawings

Fig. 1 is a schematic diagram of the system of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1, the utility model discloses a signal simulator, including the casing, be equipped with clock module 9, main control board 1, power module, first frequency and combine module 2, the second frequency and combine module 8, third frequency and combine module 5, the fourth frequency and combine module 6 and the fifth frequency and combine module 7 in the casing.

The power module is connected with the clock module 9, the main control board 1, the first frequency synthesis module 2, the second frequency synthesis module 8, the third frequency synthesis module 5, the fourth frequency synthesis module 6 and the fifth frequency synthesis module 7, and the power module is electrically connected with 220V alternating current to supply power for each module.

The clock module 9 is respectively connected with the first frequency comprehensive module 2, the second frequency comprehensive module 8, the third frequency comprehensive module 5, the fourth frequency comprehensive module 6 and the fifth frequency comprehensive module 7 to provide periodic pulses for the whole system, and the clock module 9, the first frequency comprehensive module 2, the second frequency comprehensive module 8, the third frequency comprehensive module 5, the fourth frequency comprehensive module 6 and the fifth frequency comprehensive module 7 are all in signal connection with the main control board 1.

the signals of the first frequency synthesis module 2, the second frequency synthesis module 8, the third frequency synthesis module 5, the fourth frequency synthesis module 6 and the fifth frequency synthesis module 7 are output to the single-pole five-throw switch 3, modulated by the single-pole five-throw switch 3 and transmitted to the antenna horn 4, and the single-pole five-throw switch 3 is in signal connection with the main control board 1.

The utility model discloses in, power module contains power filter 10, switch, secondary power source and fuse, and the 220V alternating current passes through switch and fuse in proper order after power filter 10 filters, carries secondary power source, and secondary power source provides the power for main control board 1. The first frequency synthesis module, the second frequency synthesis module, the third frequency synthesis module, the fourth frequency synthesis module and the fifth frequency synthesis module all comprise phase-locked loops, amplifying circuits, controllable attenuators and filters which are connected in sequence, and the phase-locked loops, the amplifying circuits, the controllable attenuators and the filters are all connected with the power control circuit.

The utility model discloses in, be equipped with clock warning light, first frequency synthesis warning light, the second frequency synthesis warning light, the third frequency synthesis warning light, the fourth frequency synthesis warning light, the fifth frequency synthesis warning light, modulation warning light and power warning light on the casing, clock warning light, first frequency synthesis warning light, the second frequency synthesis warning light, the third frequency synthesis warning light, the fourth frequency synthesis warning light, the fifth frequency synthesis warning light, modulation warning light and power warning light all with main control board 1 signal connection.

The utility model discloses when using, simulator power on self-checking passes through the back, and 5 synthesize the module frequently and produce 5 fixed spot signals frequently, export to the broadband antenna transmission after the 3 modulations of single-pole five-throw switch. And providing a stable pulse signal or continuous wave signal for the detected device. The magnitude of the transmit power may be manually adjusted. The simulator also has a self-monitoring function, and can detect whether the working states of the 5 frequency synthesis module modules and the single-pole five-throw switch 3 are normal or not through the panel indicating lamp.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. A signal simulator, characterized by: the intelligent frequency synthesizer comprises a shell, wherein a clock module, a main control board, a power supply module, a first frequency synthesizer module, a second frequency synthesizer module, a third frequency synthesizer module, a fourth frequency synthesizer module and a fifth frequency synthesizer module are arranged in the shell;

The clock module is respectively connected with the first frequency comprehensive module, the second frequency comprehensive module, the third frequency comprehensive module, the fourth frequency comprehensive module and the fifth frequency comprehensive module and provides periodic pulses for the whole system, and the clock module, the first frequency comprehensive module, the second frequency comprehensive module, the third frequency comprehensive module, the fourth frequency comprehensive module and the fifth frequency comprehensive module are all in signal connection with the main control board;

and signals of the first frequency synthesis module, the second frequency synthesis module, the third frequency synthesis module, the fourth frequency synthesis module and the fifth frequency synthesis module are output to a single-pole five-throw switch, are modulated by a single-pole five-throw switch and then are transmitted to an antenna horn, and the single-pole five-throw switch is in signal connection with a main control board.

2. The signal simulator of claim 1, wherein: the first frequency synthesis module, the second frequency synthesis module, the third frequency synthesis module, the fourth frequency synthesis module and the fifth frequency synthesis module all comprise phase-locked loops, amplifying circuits, controllable attenuators and filters which are connected in sequence, and the phase-locked loops, the amplifying circuits, the controllable attenuators and the filters are all connected with the power control circuit.

3. The signal simulator of claim 1, wherein: the power module comprises a power filter, a power switch, a secondary power supply and a fuse, 220V alternating current is filtered by the power filter, then sequentially passes through the power switch and the fuse and is conveyed to the secondary power supply, and the secondary power supply provides power for the main control panel.

4. The signal simulator of claim 1, wherein: the multifunctional intelligent clock is characterized in that a clock warning lamp, a first frequency comprehensive warning lamp, a second frequency comprehensive warning lamp, a third frequency comprehensive warning lamp, a fourth frequency comprehensive warning lamp, a fifth frequency comprehensive warning lamp, a modulation warning lamp and a power supply warning lamp are arranged on the shell, and the clock warning lamp, the first frequency comprehensive warning lamp, the second frequency comprehensive warning lamp, the third frequency comprehensive warning lamp, the fourth frequency comprehensive warning lamp, the fifth frequency comprehensive warning lamp, the modulation warning lamp and the power supply warning lamp are all in signal connection with the main control panel.