So it is of great significance and practical value to research highly efficient and exact engine power testing system without disassembly.
因此，研究高效、准确、无拆卸的发动机测功系统与有效的失火故障诊断方法具有重要的科学意义和实用价值。
The paper discusses and analyzes methods of testing various parameters in aircraft electric power system, and designs aircraft electric power testing system which is based on Virtual Instruments.
本论文深入研究了飞机供电系统的各项参数指标的测试方法并且设计出了基于虚拟仪器的飞机供电参数测试系统。
The second part is the third chapter, which explains the PN code adopted by spreading spectrum in this system and the power testing algorithm.
第二部分为第三章主要从软件算法实现方面进行阐述，该部分包括系统扩频码选取及不同长度扩频码性能比较分析和功率检测算法。
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