CN209765032U

CN209765032U - Radar target simulation intermediate frequency processing module

Info

Publication number: CN209765032U
Application number: CN201920368409.7U
Authority: CN
Inventors: 陈德平
Original assignee: Nanjing Ruide Communication Technology Co Ltd
Current assignee: Nanjing Ruide Communication Technology Co Ltd
Priority date: 2019-03-22
Filing date: 2019-03-22
Publication date: 2019-12-10
Anticipated expiration: 2029-03-22

Abstract

The utility model discloses a radar target simulation intermediate frequency processing module, which comprises a module main body, wherein the lower surface of the module main body is provided with a connecting plate, both ends of the inner surface of the connecting plate are provided with grooves, the end part of the connecting plate is provided with a first fixing plate, the joint of the two ends of the first fixing plate and the grooves is provided with a connecting pin, the joint of the lower surface of the first fixing plate and the inner bottom end of the connecting plate is provided with a spring, and the lower surface of the first fixing plate is provided with a clamping plate; through the internal design protective cover at the jack and design the spring leaf all around at the protective cover, the jack is not convenient for protect when avoiding not using, and inside easily gets into the dust and causes contact failure when using, can insert the inside of jack to the inside protection of jack with the protective cover, and the effect of taking place deformation through the spring leaf when inserting is with the inseparable block of protective cover in the inside of jack, has solved the problem of the protection of being not convenient for of inside to.

Description

Radar target simulation intermediate frequency processing module

Technical Field

The utility model belongs to the technical field of the radar simulation, concretely relates to radar target simulation intermediate frequency processing module.

Background

The existing intermediate frequency processing module is a unit which is separated from radio frequency and signal processing, has large volume, complex interface and control and difficult miniaturization, is used for radar target analog signal processing and is mainly characterized by high-speed data sampling and storage, a unilateral modulation technology, an instantaneous AGC technology and a software moving target generation technology; the existing intermediate frequency processing module is inconvenient to install and is not fastened after installation, so that the intermediate frequency processing module is loose during operation after installation, a jack is inconvenient to protect when not in use, and the inside of the intermediate frequency processing module is easy to enter dust to cause poor contact during use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide radar target simulation intermediate frequency processing module to it does not fasten after installation not be convenient for install and the installation to propose current intermediate frequency processing module in solving above-mentioned background art, makes when the installation back is operated not hard up, and the jack is not convenient for protect when not using, and inside easily gets into the problem that contact failure caused when using of dust.

In order to achieve the above object, the utility model provides a following technical scheme: radar target simulation intermediate frequency processing module, including the module main part, the lower surface of module main part is provided with the connecting plate, the internal surface both ends of connecting plate all are provided with the recess, the tip of connecting plate is provided with first fixed plate, the both ends of first fixed plate with the junction of recess is provided with the connecting pin, the lower surface of first fixed plate with the inside bottom junction of connecting plate is provided with the spring, the lower surface of first fixed plate is provided with the cardboard, the surface of cardboard is provided with the draw-in groove plate.

Preferably, the one end of module main part is provided with the jack seat, the tip of jack seat is provided with the protective cover, the tip of protective cover is provided with the second fixed plate, all be provided with the spring leaf around the second fixed plate.

Preferably, the second fixed plate with the tip of protective cover is the rectangle structure, just the spring leaf with second fixed plate formula structure as an organic whole.

Preferably, the protective cover and the jack seat are fixedly connected with the second fixing plate through the spring piece in a clamping manner.

Preferably, the two ends of the first fixing plate and the two ends of the inside of the connecting plate are slidably connected with the groove through the connecting pin, and the connecting pin penetrates through the two ends of the first fixing plate.

Preferably, the lower surface of the first fixing plate is fixedly connected with the inner bottom end of the connecting plate through the spring.

Preferably, the first fixing plate and the clamping groove plate block are fixedly connected through the clamping plate in a clamping manner, and the clamping plate and the first fixing plate are of an integrated structure.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) through the lower surface design connecting plate at the module main part and at the junction design spring of connecting plate and first fixed plate, it is not fastened after installation not convenient for install and the installation to avoid current intermediate frequency treatment module, it is not hard up when making the installation operation, can be at the upper surface of draw-in groove plate through the inseparable block of cardboard, the effect that takes place elastic deformation through the spring in the block makes first fixed plate slide in the inside that the surface of connecting pin is in the recess and fix cardboard and the inseparable block of draw-in groove plate, the problem of not fastening when having solved the installation.

(2) Through the internal design protective cover at the jack and design the spring leaf all around at the protective cover, the jack is not convenient for protect when avoiding not using, and inside easily gets into the dust and causes contact failure when using, can insert the inside of jack to the inside protection of jack with the protective cover, and the effect of taking place deformation through the spring leaf when inserting is with the inseparable block of protective cover in the inside of jack, has solved the problem of the protection of being not convenient for of inside to.

Drawings

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the lower surface of the module body and the clamping plate of the present invention;

Fig. 3 is a schematic side sectional structural view of the module body, the connecting plate and the clamping groove plate of the present invention;

FIG. 4 is a schematic side view of the protective cover, the second fixing plate and the spring plate of the present invention;

Fig. 5 is a schematic top view of the protective cover, the second fixing plate and the spring plate of the present invention;

FIG. 6 is a schematic structural view of the working principle of the present invention;

In the figure: 1. a module body; 2. a jack seat; 3. a protective cover; 4. clamping a plate; 5. a connecting pin; 6. a first fixing plate; 7. a groove; 8. a neck plate; 9. a connecting plate; 10. a spring; 11. a second fixing plate; 12. a spring plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the present invention provides a technical solution: radar target simulation intermediate frequency processing module, including module main part 1, module main part 1's lower surface is provided with connecting plate 9, the internal surface both ends of connecting plate 9 all are provided with recess 7, the tip of connecting plate 9 is provided with first fixed plate 6, the both ends of first fixed plate 6 are provided with connecting pin 5 with recess 7's junction, the lower surface of first fixed plate 6 is provided with spring 10 with the inside bottom junction of connecting plate 9, the lower surface of first fixed plate 6 is provided with cardboard 4, cardboard 4's surface is provided with draw-in groove plate 8, can be with the inseparable block of cardboard 4 at the upper surface of draw-in groove plate 8, the effect that takes place elastic deformation through spring 10 in the block makes first fixed plate 6 slide in the inside of recess 7 at connecting pin 5's surface and fix cardboard 4 and the inseparable block of draw-.

In this embodiment, preferably, one end of the module main body 1 is provided with the jack seat 2, the end of the jack seat 2 is provided with the protective cover 3, the end of the protective cover 3 is provided with the second fixing plate 11, the spring pieces 12 are arranged around the second fixing plate 11, the protective cover 3 can be inserted into the jack seat 2 to protect the inside of the jack seat 2, and the protective cover 3 is tightly clamped inside the jack seat 2 through the effect of deformation of the spring pieces 12 when being inserted.

in order to fix the spring plate 12 by the second fixing plate 11, in the embodiment, it is preferable that the second fixing plate 11 and the end of the protective cover 3 are both rectangular, and the spring plate 12 and the second fixing plate 11 are integrated.

in order to fasten the protecting cover 3, in the present embodiment, it is preferable that the protecting cover 3 and the jack 2 are fixedly connected to each other by the spring 12 and the second fixing plate 11.

In order to facilitate the sliding of the first fixing plate 6 on the outer surface of the connecting pin 5, in this embodiment, preferably, both ends of the first fixing plate 6 and both ends of the inner portion of the connecting plate 9 are slidably connected with the grooves 7 through the connecting pin 5, and the connecting pin 5 penetrates the inside of both ends of the first fixing plate 6.

In order to facilitate the tight connection of the first fixing plate 6 by the spring 10, in the present embodiment, it is preferable that the lower surface of the first fixing plate 6 is fixedly connected with the inner bottom end of the connecting plate 9 by the spring 10.

In order to facilitate the fastening of the clamping groove plate 8 by the clamping plate 4, in the embodiment, preferably, the first fixing plate 6 and the clamping groove plate 8 are fixedly connected by the clamping plate 4, and the clamping plate 4 and the first fixing plate 6 are in an integrated structure.

Signal receiving: the radar excitation signal is fed in through a microwave front end and then down-converted to 900M intermediate frequency with a first swept frequency local oscillator, power is divided into two paths after filtering and AGC amplification, one path is output to a signal processing module, the other path is detected and output to the first swept frequency local oscillator, a DSP in the swept frequency local oscillator analyzes a detected signal, the working frequency of a radar is calculated, the working frequency of the radar is locked by the first local oscillator controlled by the calculated result, and accurate demodulation of the intermediate frequency signal processing module is guaranteed. After the first intermediate frequency signal is input into the signal processing module, the first intermediate frequency signal and a second local oscillator are subjected to zero intermediate frequency IQ demodulation, and IQ two paths of video signals about 1v after demodulation are filtered by a low-pass filter and then enter a signal processor.

Signal processing: the signal processor firstly carries out A/D conversion on the signals, the signals are stored and delayed through two paths of large-capacity IFO to obtain the distance of a target, and the high-speed DSP processing chip carries out Doppler frequency shift modulation and operation on the signals to obtain the speed of the target. The speed and distance of the target are input into the DSP in the signal processor in advance through the panel keyboard, and the DSP performs the related operation of the distance and the speed of the target to generate distance and speed parameters to process the signal. After the processing, the IQ signals are processed and finished through two-way D/A conversion, filtering and amplification to IQ signals about 1V.

And (3) signal recovery: the inverse process of reception follows, in which the IQ signal is modulated to an intermediate frequency of 900MHz by a single-sideband modulator, and is also filtered, amplified, and output in a fixed amplitude. The intermediate frequency signal and the first local oscillator are up-converted to radar frequency, and the processed microwave signal is amplified, filtered, subjected to variable attenuator and the like, and finally isolated and output to a transmitting antenna.

The utility model discloses a theory of operation and use flow: this radar target simulation intermediate frequency processing module, after production is qualified, when needing to transport or carry module main part 1, can insert the inside protection to jack seat 2 of jack seat 2 with protective cover 3 this moment, take place the inside of deformation with the inseparable block of protective cover 3 in jack seat 2 through spring leaf 12 when inserting, then when needing to install before the use, 4 inseparable blocks of cardboard are at the upper surface of draw-in groove plate 8, the effect that takes place elastic deformation through spring 10 in the block makes first fixed plate 6 slide in the inside that connecting pin 5's surface is in recess 7 and fix cardboard 4 and the inseparable block of draw-in groove plate 8 can.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Radar target simulation intermediate frequency processing module, including module main part (1), its characterized in that: the lower surface of module main part (1) is provided with connecting plate (9), the internal surface both ends of connecting plate (9) all are provided with recess (7), the tip of connecting plate (9) is provided with first fixed plate (6), the both ends of first fixed plate (6) with the junction of recess (7) is provided with connecting pin (5), the lower surface of first fixed plate (6) with the inside bottom junction of connecting plate (9) is provided with spring (10), the lower surface of first fixed plate (6) is provided with cardboard (4), the surface of cardboard (4) is provided with draw-in groove plate piece (8).

2. the radar target analog if processing module of claim 1, wherein: the one end of module main part (1) is provided with jack seat (2), the tip of jack seat (2) is provided with protective cover (3), the tip of protective cover (3) is provided with second fixed plate (11), all be provided with spring leaf (12) around second fixed plate (11).

3. The radar target simulation if processing module of claim 2, wherein: the end parts of the second fixing plate (11) and the protective cover (3) are both rectangular structures, and the spring piece (12) and the second fixing plate (11) are of an integrated structure.

4. The radar target simulation if processing module of claim 2, wherein: the protective cover (3) and the jack seat (2) are fixedly connected through the spring piece (12) and the second fixing plate (11) in a clamping mode.

5. The radar target analog if processing module of claim 1, wherein: the two ends of the first fixing plate (6) are connected with the two ends of the connecting plate (9) in a sliding mode through the connecting pins (5) and the grooves (7), and the connecting pins (5) penetrate through the two ends of the first fixing plate (6).

6. The radar target analog if processing module of claim 1, wherein: the lower surface of the first fixing plate (6) is fixedly connected with the inner bottom end of the connecting plate (9) through the spring (10).

7. The radar target analog if processing module of claim 1, wherein: the first fixing plate (6) and the clamping groove plate block (8) are fixedly connected through the clamping plate (4) in a clamping mode, and the clamping plate (4) and the first fixing plate (6) are of an integrated structure.