Issue 5,2003 Table of Contents

1 Effect of Operation Modes on Phased Array Radar Range

2003(5):1-6.

[Abstract](4680) [HTML](0) [PDF 0.00 Byte](2)

Abstract:
Phased array radar detection range depends on radar technical parameters and radar operation mode control parameters. In this paper the calculation formulas of detection range and tracking range for different phased array radar operation modes are derived, the effect of operation mode control parameters on radar range is discussed in detail as well.

2 A Method of Testing the Multargets Tracking Performance of Phased Array Radar

LI Yu shu ZHANG Ting

2003(5):7.

[Abstract](4569) [HTML](0) [PDF 0.00 Byte](2)

Abstract:
相控阵测量雷达多目标跟踪功能是其重要的工作方式，对这种工作方式进行检验是十分必要的，本文提出了一种利用多目标动态模拟器对相控阵雷达多目标动态性能进行检验的方法，介绍了多目标模拟器的基本原理，并以一部相控阵精密测量雷达为例，对检验方法做了具体阐述。

3 Communication Method between PC and DSP in Ionospheric Oblique Backscattering Sounding System

LIU Jin hua ZHAO Zheng yu XIE Shu guo

2003(5):9-11.

[Abstract](4462) [HTML](0) [PDF 0.00 Byte](1)

Abstract:
This paper introduced one kind of communication method between PC and DSP in ionospheric Oblique backscattering sounding system(IOBSS), which is composed of three parts: PC sending executable code to DSP, PC reading data from DSP and the parameter exchange between PC and DSP. This method ensured the consecution of the sounding process and enhanced the efficiency of the processing result of the sounding data.

4 Research on Active Radar Imaging Seeker

LI Dao jing ZHANG Lin xi YU Bian zhang

2003(5):12-15.

[Abstract](4600) [HTML](0) [PDF 0.00 Byte](2)

Abstract:
研究了主动雷达成像导引头的工作模式、成像方法和系统控制方式。通过对雷达导引头子孔径数据进行聚束处理，在短时间和大前斜视角情况下完成对其天线波束覆盖的地面目标区域的快速成像，利用雷达图像跟踪和单脉冲跟踪两种跟踪模式分别解决对目标的远距离前斜视跟踪和近距离前视跟踪问题。分析设计了一近程主动雷达成像导引头在Ku和Ka波段的指标并给出其主要的技术参数。

5 Study and Application of Angle Mesurement for 2-D Phased Array Monopulse Tracking

NIU Bao jun LI Yan bo

2003(5):16-18.

[Abstract](4453) [HTML](0) [PDF 0.00 Byte](18)

Abstract:
A new method for the monopulse track is introduced. By use of the sinusoidal spatial transform, the method transfers the nonlinearly variational characteristics on monopulse angle sensitive function versus scan angle in antenna array coordinate to a simple linearly shift one in sinusoidal space. While binding angle sensitive for 2 D phased array, it need binding only a curve in azimuth and elevation plane. Not only the access and storage spaces are reduced, but the quantization errors due to partition and beam controller are illuminated. The radar track precision is improved obviously.

6 A Study on Passive Bistatic (Multistatic) Radar Using GSM

LIU Hui ru TAO Ran ZHOU Si yong

2003(5):19-21.

[Abstract](5065) [HTML](0) [PDF 0.00 Byte](4)

Abstract:
This paper discusses the use of a non co operative basestation transmitter as the opportonity illuminator for a bistatic ( multistatic ) radar system. The problem is investigated in these aspects: the character of mobile communication signal? the selection of mobile communication channel, the range and the detection of radar using basestation transmitter. Finally the simulation results are given.

7 A Survey of Radar Target Recognition Technique

WANG Xiao dan WANG Ji qin

2003(5):22-26.

[Abstract](4735) [HTML](0) [PDF 0.00 Byte](11)

Abstract:
A survey of radar target recognition technique is given in this paper. 4 classes of target recognition techniques which based on the moving and jet engine modulation effect, distribution of poles, high resolution radar imaging and polarization diversity character of the target are discussed separately. 4 pattern recognition methods (statistic pattern recognition, fuzzy pattern recognition, model based and knowledge based pattern recognition, neural network) and their applications in radar target recognition also discussed. The analysis of the problem is given in the end of this paper.

8 Research on CPLD Module Application in MMW Radar Rranging

HUANG Kang LOU Guo wei ZHANG Yuan yuan

2003(5):27-29.

[Abstract](4551) [HTML](0) [PDF 0.00 Byte](23)

Abstract:
In this paper, it is intruduced how to range in the MMW radar by programming CPLD in VHDL. According to analysis and experiments,the ranging module reached the desired technical requirement and improved the precision of ranging.

9 Analysis of Radar Detectability for Small Target in Typical Clutter

WU Yong hui MA Xiao yan

2003(5):30-33.

[Abstract](4619) [HTML](0) [PDF 0.00 Byte](2)

Abstract:
Based on the dynamic simulation of the process of the signal processing subsystem of a modern low altitude radar, its ability of detecting small target in typical clutter background is analyzed, and the corresponding detecting results are given.

10 FPGA Implementations of Digital Beamformer

CHENG Wei ZUO Ji zhang XU Yue lei

2003(5):34.

[Abstract](4713) [HTML](0) [PDF 0.00 Byte](6)

Abstract:
Digital beamforming technology comes of antenna beamforming theory and digital signal processing technology.It is widely applied to the domain of array signal processing.This paper studies the basic theory of digital beamformer and the FPGA implementation structure of digital beamformer.

11 Adaptive Sample Target Tracking Algorithm for Phased Array Radar

ZHAO Yan li LIU Jian LUO Peng fei

2003(5):37-39.

[Abstract](4593) [HTML](0) [PDF 0.00 Byte](3)

Abstract:
In this papper, an adaptive sample target tracking algorithm is studied. The purpose of this algorithm is twofold: to estimate and predict the target states; and to estimate the level of process noise. The estimate of the process noise level is used to detemined the sample interval adapted to changing target dynamics. Performance comparisons for constant and adaptive data rates are given.

12 Blind Adaptive Beam Forming with Cyclic Frequency Error

FAN Da WU Ying ZHANG Li

2003(5):40-43.

[Abstract](4634) [HTML](0) [PDF 0.00 Byte](1)

Abstract:
绝大多数通信信号都具有循环平稳特性，利用信号的循环平稳特性可以进行真正的盲自适应波束形成，例如CAB类算法以及基于特征空间的盲波束形成算法^[3]。但当循环频率存在误差时，上述算法的性能将急剧下降。本文提出一种改进算法，在估计循环相关短阵时引入遗忘因子可以大大降低算法对循环频率误差的敏感性，计算机仿真验证了理论分析的正确性。

13 A VME Bus-based High Speed Real-time Data Collection System

YING Bo

2003(5):44.

[Abstract](4611) [HTML](0) [PDF 0.00 Byte](2)

Abstract:
The raw material is the base of data processing, thus the development of radar data collection system is more emphasized. The design method of a VME bus-based high speed real-time data collection system is presented from the general purpose of VME bus, its applications are described. It saves the manpower and resources and speeds up the flight test of radar.

14 High Speed Board Design Techniques for DSP

HONG Wei

2003(5):47-50.

[Abstract](4566) [HTML](0) [PDF 0.00 Byte](1)

Abstract:
Some experiences, rules and something must be pay attention to in high speed board design for DSP are introduced in this paper, describe the power distribution,how to avoid the reflection, crosstalk and the way how to route the important single in high speed board, make all designs more perfect,easy to finish.

15 Question about the Dynamic Domain of the Receiver with Digital Pules-compression for Active Solid Phased Array Radar

HU Jin

2003(5):51-54.

[Abstract](4691) [HTML](0) [PDF 0.00 Byte](1)

Abstract:
The systematical feature of a receiver with digital pules compression for active solid phased array radar is analyzed. The relationship between the dynamic domain of every step circuits and the dynamic domain of general system is discussed.The method of measuring dynamic domainof receiver of this kind system is introduced

16 Telemeasure and Telecontrol System for OTH Radar''''s Power Supply

HU Jian dong

2003(5):55-56.

[Abstract](4581) [HTML](0) [PDF 0.00 Byte](1)

Abstract:
This paper introduces a new supervising system which uses to measure and control some far power supplys. Every power supply can be controlled from far by equipping with one module.Every module supervises three outputs and can adjust one output voltage.Power supply's overvoltage and overcurrent protecting are all implemented by software.

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