A new method for evaluating the emission level of the EUT in any electromagnetic environment in which the level of the EUT is less than the limit level is proposed in this paper.

Research of Rocket-Launcher System Mode;

From the viewpoint of the weapon system,some new theories in the launch dynamics and transfer matrix method of multibody system are used to study the method to improve the firing accuracy of ballistic missiles and to analyze the causes of errors influencing the missile accuracy.

The paper introduces the launch modes and characteristics of the high speed and low speed near space aerocraft.

In view of electromagnetics leakage in 100BASETXLAN, couple model and simplied model of transmision signal were presented after analysing the transmission principle of twistedpair wire.

The chemical content structure and mechanism of emission under the vltraviolet excitation of the sample were investigated.

DMF-1 Micro-Power Meter of Testing and Transmitting;

A transmitting and receiving system used in high frequency ultrasound imaging is introduced and has been used for image collection of 10MHz、20MHz and 50MHz HF ultrasonic imaging equipments.

This paper discusses transmitting and recelving technique of multichannel microwave Distribution System (MMDS), the structure of circuit system and the good results obtained in CATV (Community Antenna Television) application.