The trend of laser radar for military is discussed, which includes the new laser radar system (the phased array laser radar, the imaging laser radar for ATR, the MTI laser radar, the synthetic aperture laser radar and the scannerl
The principles of lidar wind measurement are reviewed and compared. The method of direct detection with a Fabry-Perot interferometer for 3D wind measurement is proposed. The measurement principle is described and the performance a
The pulsed LD rangefinder has many characteristics, such as simple construction, small size, light weight and so on. It has some advantages in applications of short and middle range measurement. At present, the maximum measurement
The traditional digital counting method for time-interval measurement in pulsed laser ranging can't achieve high precision, for it's restricted by the frequency of counting clock. Analog interpolation time-interval measurement has
The method of simulated test of pulse laser rangefinder uses LED (or LD) to simulate object to test pulse laser rangefinder (or ranging equipment). The test system receives a laser beam generated by rangefinder and starts a precis
The coherent CO2 laser imaging system has high resolution, strong anti-interference and 3D imaging, but its imagery is usually affected by speckle noise, imaging resolution descend. It's important to study on suppressing speckle a
CaF\-2 was chosen as the window material. The experiment was guided to test the influence of the window on beam quality while the window was at high temperature and stress. A deterioration of high energy laser beam quality caused
The characteristics of seed injected oscillator consisting of main oscillator and power amplifier are analyzed by matrix optics theory. The main oscillator consists of two spherica mirrors of curvature -250 mm and 5 000 mm, spaced
Thermal interaction mechanism of laser diode ignition is investigated through theoretic analysis, experiments and numerical calculations. The critical values and impacting factors are analyzed. In general, the mechanism of laser d
Two kinds of semiconductor lasers (InGaAs, 2 W, continuous output, infrared 980 nm and InGaAsP, 120 mW, continuous output, infrared 980nm, including tail-fiber and cooler) are taken for examples and the rules of the change of semi
It is an important task to detect and track the lowly observable and small targets in a sequence of infrared images against cloudy background. A simple and practical scheme about dim small target detection in cloudy background is
The small target detection in infrared imagery with complex background of sea and sky is studied. Taking into account that small target of infrared image guidance like naval vessel is always nearby the sea-sky-line, wavelet multir
A mathematical model to detect the moving targets by the discontinuous frame difference vector's infinite norm is proposed. Then the parallel processing construction system is established, which can make full use of the moving poi
Radon transform has important value in mathmatics theory, which can be used in algorithms for detecting linear features in an image. However, it has difficulty in detecting line segments in image, because Radon transform can not p
For analyzing land covers and matching of remote sensing images, gray calibration of image is an indispensable part, for the result will directly influence the later procession. An algorithm of image gray calibration based on hist
Low light level (LLL) image procession has become one of the most important task of low light level night vision technology. Image fusion is a newly developing technology which extracts information from multi-channel images to for
Image fusion is one of the important techniques to enhance image information. A novel pixel-level image fusion scheme is presented based on multiscale decomposition. The wavelet transform is used to construct the wavelet coefficie
The objective of image fusion is to combine information from multiple images of the same scenc to accomplish tasks that cannot be achieved with a single image or source. Wavelets with their multiresolution property, have been prov
In the scene matching system, the axis of camera is looking-down. For the limit of the interspace the camera is in strap-down way with carrier in pitch and the rolling direction. In this way, only the y-axis of the ground image ac
Real time image photographed by aerocraft is processed in short time and small program memory. Improved geometric calibration algorithm by increment is proposed. Convergent function is deployed by use of Taylor progression based o
Kinetic equation was used to solve electron trajectoy. By utilizing 64-point-Lagrange-interpolation and spherical cathode extrapolation, potential of random point in space was solved. Then by using changing-step Runge-Kutta method
All-optical wavelength conversion (AOWC) technologies are very important for the development of WDM optical networks. After the conventional AOWC is reviewed, the basic principles of three new-type AOWC technologies are described
A method based on binocular vision model is discussed to determine the relative motion parameters between two space objects. The relationship between the detection of feature points and the measurement of motion parameters is stud
An interferogram acquisition and procession system is introduced in detail. The system based on Windows98 environment is designed for V3A image grabber. It mixes the advanced image acquisition and procession technology and databas
Serial communication plays an essential role in data acquisition system. It is convenient and efficient to realize serial data communication by using communication control of VB\{6.0\}, comparing with other programming methods. Se
A fast algorithm for MPEG compressed video segmentation based on macroblock(MB) types is presented. A rough scan over the P-frames locates the potential scene change boundaries and the solution is then refined by a precise scan ov
With the development of digital TV technology, the ability of receiver to receive the service information in TS becomes more and more important. Firstly the PSI (Program Specific Information) in MPEG-2 and SI (Service Information)