In order to solve the increasing number of range tests and break the "chimney" between various test sites, the US military first proposed and built TENA (testing and training architecture), which realized the unified test of different geographical distribution and different test sites, greatly shortened the test cost and cycle, and became the benchmark of future joint tests. Among them, the test object is the main body of the joint test site. How to build the test object model quickly and accurately is the key to realize composability, reusability and interoperability among joint test sites. At present, there are many researches on the overall framework of joint test in China, and few researches on the construction technology of test object model. Based on the meta model, this paper designs a set of methods for constructing object model, realizes the design of virtual object model, and constructs it. The simulation verifies the effectiveness of this method, and provides technical reference for the research of multi-regional joint test field in China.
The descending speed of the aircraft is fast and the time is short. How to measure the instant descending speed has become a research hotspot. At the moment of descent, the on-board sensors and other equipment often have intermittent signals at the moment of landing, resulting in data gaps, which cannot meet the needs of actual scientific research. Based on this, a set of high-speed camera arrays is designed in this paper, and the camera angles are overlapped by cross-layout. The camera hardware is programmed to grant GPS time uniformly, which unifies the camera time. Then, the method of multi-eye vision measurement is used to measure the descending speed of the aircraft, and the simulation verification is carried out, and good results are obtained. Finally, the error is evaluated, and the measurement speed accuracy can meet the actual use, which shows that the establishment of the camera array measurement system can quickly and effectively solve the problem of aircraft descent speed measurement.
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