Key Techniques And System Design Of The Signal Source Using For Torpedo Homing Simulation

The paper mainly studies the design of the Torpedo Homing Simulation Signal Source system and the signal processing for signals. The signal source plays an important role in Hardware-In-the-Loop (HWIL) simulation and onshore debugging of the Torpedo Homing System. The mainly contribution of this paper are as follows :1. The target characteristics and simulating methods of the Torpedo Homing System are studied, then the simulation model based on highlighter units is brought forward, and the basic principles and methods are studied. Based on these theoretic, the systemically designing plan of the signal source is put forward.2. The arithmetic of signal processing for the signal source is studied, which mainly consists the generating methods and delaying disposal of signals. The generating arithmetic of different kinds of signal is discussed in detail, and the arithmetic forms suitable for DSP are ascertained. The delay arithmetic employed in this system is studied, after this, the two kinds of delay arithmetic are compared in performance.3. The designs of hardware and software are accomplished. The pipeline processing structure, consisting multi-DSP and suitable for array signal processing, is put forward. The hardware platform which is composed by multi modules is introduced. Then, the management in the software is explained accompanied by the key techniques and difficulties in the designing process.4. The performance of signal source is tested by the Torpedo Homing Signal Processing Platform. The results show that the signal source runs steadily, and reaches the targets required initially.