弹载数据测试系统(3)

ABSTRACT

Closely combined with the actual application of engineering, under the background of the researching missile, in the center of the MCU for choosing and designing, the request of the total system technique, the choices for main chips, design for the system hardware and software, the system credibility, the system recovery and some experiments about the system etc. are studied in detail in this paper.

According to the signal characteristics of some researching missile, the total system technique request which satisfies current missile is put forward.

Under the leading of total technique request, the concrete function indexes of the main chips are put forward and some chips are chose. According to the system request, the choices of the main chips include the MCU, the switch, the A/D converter and the FLASH etc., the choice principles of these chips are in addition to high cost performance, which need some special requests for the system.

Design for the system hardware and software is one of the important aspects in this paper. Particularly in the software design, the system flow chart, the system cycle time controls and the system parts of procedure etc. are mainly discussed.

Moreover, the system credibility and the system recovery are discussed. The credibility of the system are several aspects, the chips’ credibility, the circuit credibility, the credibility of anti-pound, the credibility of operation and safety and the system anti-interference etc. are discussed. Four methods are discussed for the recovery problem of the system in this paper, these methods have respective the advantages and shortages.

The related testing and application of the system also are discussed in the paper. The experiments which have been done include the static testing including high/low testing, vibration testing, overload testing and dynamic