CN102929287A - Method for improving target acquisition accuracy of pilot - Google Patents

Abstract

The invention belongs to the technical field of imaging seeker target acquisition and control scheme designs, and in particular discloses a method for improving the target acquisition accuracy of a pilot. The method comprises the following steps of: 1, starting a seeker; 2, controlling the seeker to search a target by the pilot, and finding and locking the target; 3, when the seeker stably tracks the target, allowing the seeker to start entering an image magnification program automatically by an image zoom technology to generate a video image which is magnified by n<2> times, and outputting and displaying the video image, and when the seeker does not stably track the target, repeating the step 2; and 4, performing fine correction on the magnified video image. A target area is magnified by an electronic zoom technology in a single-field-of-view seeker weapon system, so that the target acquisition accuracy of the pilot can be improved, the technology is mature, hardware investment is small, cost is low; and a few control steps are performed, the pilot simply controls the seeker, and the acquisition and control difficulty and pressure of the pilot are reduced.

Description

A kind of method that improves pilot's target acquisition precision

Technical field

The invention belongs to Imaging Seeker and catch control target protocol design field, specifically, disclose a kind of method of the pilot's of raising target acquisition precision.

Background technology

For adopt " locking before the emission, after the emission no matter " aircraft, the height that the pilot catches the control aimed at precision before the emission will directly affect the precision of final armament systems hit.Even it is identical to catch the control precision under different transmitting range conditions, the identical control error of catching is namely arranged, then the corresponding error amount that produces is different, and the distance corresponding error amount that produces far away is larger.Simultaneously because transmitting range is far away, the target imaging pixel is less before the emission, the pilot can't accurately aim at calibration point, the target imaging pixel of approaching along with distance after the emission increases gradually, but because prosthetic participates in behind the vehicle launch, can't be further accurately revising keyed end by artificial participation provides and catches the control precision.Therefore reduce the pilot before emission catches error as far as possible, improves acquisition accuracy particularly important.

And in the past in order to reduce pilot's the error of catching, often catch the control operation training by strengthening the pilot, the skill level of raising pilot manipulation reaches the familiarity to the target area, improve the pilot and catch the control precision, what the method reduced the pilot to a certain extent catches the control error, but it is that the human eye pointing error can't be eliminated that the pilot catches the intrinsic mistake of control, how improves fundamentally that to catch the control precision be the problem that we need to consider and solve.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art, adapt to the reality needs, a kind of method of the pilot's of raising target acquisition precision is provided.

In order to realize purpose of the present invention, the technical solution used in the present invention is:

A kind of method that improves pilot's target acquisition precision comprises the steps:

The first step, the target seeker start;

Second step, pilot manipulation target seeker search target is found and lock onto target;

The 3rd step, during target seeker tenacious tracking target, adopt image zoom technology, target seeker begins automatically to enter the image amplification procedure, generates to amplify n ²Video image doubly is used for output display; Target seeker during the tenacious tracking target, does not repeat second step;

In the 4th step, video image is just carrying out refine after amplifying.

Beneficial effect of the present invention is:

1. in monoscopic target seeker armament systems, adopt electronics zoom technology, the target area is amplified, can improve pilot's target acquisition precision, technology maturation, hardware drops into little, and cost is low;

2. operating steps is few, and pilot manipulation is simple, has reduced simultaneously the pilot and has caught control difficulty and pressure.

Description of drawings

Fig. 1 is that the target seeker with image anamorphosis function is caught the flow control journey.

Fig. 2 is image anamorphosis function schematic diagram.

Embodiment

The present invention is further described below in conjunction with drawings and Examples:

Embodiment: referring to Fig. 1, Fig. 2.

A kind of method that improves pilot's target acquisition precision comprises the steps:

The first step, the target seeker start;

Second step, pilot manipulation target seeker search target is found and lock onto target;

The 3rd step, during target seeker tenacious tracking target, adopt image zoom technology, target seeker begins automatically to enter the image amplification procedure, generates to amplify n ²Video image doubly is used for output display; Target seeker during the tenacious tracking target, does not repeat second step;

In the 4th step, video image is just carrying out refine after amplifying.

Now illustrate detailed operation steps of the present invention:

A. target seeker is received the start-up command start;

B. the pilot catches the control operation, and search, discovery and speed set the goal, and keyed end is (A, B);

C. behind the target seeker tenacious tracking, (Seeker's light axis or picture centre stable alignment target, optical axis or picture centre do not fall into target external, are stable alignment, and stable alignment time 〉=0.2s can be judged as the target seeker tenacious tracking.) pilot sends the instruction of image zoom, generate to amplify n ²Video image output display doubly because the target seeker visual field is limited, the monolateral amplification n of image doubly after, the target area that can present in the target seeker visual field becomes the 1/n of overlay area, former visual field ², carry out the keyed end correction in the image of pilot after amplification, whether the keyed end coordinate that the target seeker internal judgment is new satisfies tracer request, satisfied then respond new keyed end coordinate, target seeker tenacious tracking; The keyed end coordinate is that (A, B) passes through coordinate conversion in the video image after amplification, becomes again to the original resolution image, and the keyed end coordinate becomes (A/n, B/n), catches the control precision and has improved n doubly, and the inner original deflection pixel that adopts of target seeker is controlled tracking; Among Fig. 2, solid box represents target sizes before the zoom, and the dotted line frame represents target sizes after the zoom, and cross represents keyed end.The image zoom is that image electronic amplifies, and resolution is constant, directly realizes by software;

D. the pilot sends and withdraws from the instruction of electronics zoom, target seeker output original image, and continue to keep following the tracks of;

E. vehicle launch, target seeker continue to keep tenacious tracking, vectored flight device target of attack.

What embodiments of the invention were announced is preferred embodiment, but is not limited to this, those of ordinary skill in the art; very easily according to above-described embodiment, understand spirit of the present invention, and make different amplifications and variation; but only otherwise break away from spirit of the present invention, all in protection scope of the present invention.

Claims (1)

1. a method that improves pilot's target acquisition precision is characterized in that, comprises the steps:

The first step, the target seeker start;

Second step, pilot manipulation target seeker search target is found and lock onto target;

The 3rd step, during target seeker tenacious tracking target, adopt image zoom technology, target seeker begins automatically to enter the image amplification procedure, generates to amplify n ²Video image doubly is used for output display; Target seeker during the tenacious tracking target, does not repeat second step;

In the 4th step, video image is just carrying out refine after amplifying.

Images