真船首向 的英文怎麼說
中文拼音 [zhēnchuánshǒuxiàng]
真船首向
英文
true heading-
We can n ' t get result on how to change course and speed to make collision avoidance, this can help little on collision avoidance decision. the article aims at the default on radar simulator and implements the standard result on radar simulator by making use of mcu. the main production is below : first, we calculate how to chang course and speed on the destine point by mcu. we get the new course and new speed on the destine point, we get the point to resume original course and speed, we get the distance and azimuth to resume original course and speed on given course and speed, the six essential : dcpa, tcpa, distance, azimuth, real speed and real course
本論文針對當前雷達模擬器標繪訓練中的不足，實現了利用單片機進行雷達模擬器標繪標準值的計算，主要成果有以下方面：首先，利用單片機計算得到了在預定點改變航向和改變航速的計算，求得預定點改向的新航向c _ n和預定點變速的新速度v _ n ，恢復原航向和原航速的時機點的計算；在給定避碰的新航向、航速的條件下，計算出恢復原航向航速的時機點h的距離r _ h和方位_ h ；目標船的六要素，即dcpa 、 tcpa 、距離r （ t ） 、方位（ t ） 、真航速v _ t和真航向c _ t 。For displaying the initial date aquired from sea chart correctly in three different display modes ( relative head up motion, relative north up motion, true north up motion ), a series of coordinate conversion are necessary. in the second chapter, data structure and various coordinates conversion are discussed in details
要使從海圖錄入的原始數據能夠在3種不同的顯示方式（船首向上的相對運動顯示方式、北向上的相對運動顯示方式和北向上真運動顯示方式）下正確的顯示出來，必然要在幾個坐標系（圖板坐標系、屏幕坐標系、平面直角坐標系和地理坐標系）中進行一系列的坐標變換。
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