| Head-Up display (HUD) is an important part of fire control system, and it does very important function during the period of target-attacked. So it is necessary to check and measure the HUD after it has been manufactured. Under the requirement抯 impulse, the paper studies the fire-control algorithms used in the HUD detection. The theoretic and the project equations are deduced detailedly and simulated with computer. Several algorithms are discussed, and the China-Lake algorithm is improved. In the realistic project application, the polar coordinates algorithm is introduced in the ballistic calculation procedure, which includes coordinates transformation and integrating variable transformation, and makes the ballistic integration convert into constant limitation integration. All these simplified the calculation procedure, saved the calculation time and enhanced calculation precision. The project application of the fire control system抯 HUD sample approved that the algorithm can meet the need of precision and speed of the fire control system. The paper抯 simulation software is designed with a new kind of program technique, which is, the mathematics?model is calculated with MATLAB, and the whole software is droved with VC. After software design, the author finds that the technique is realizable, the advantages of MATLAB and VC are inspired, and the software design gets twice the result with half the effort. |