文章基本信息

标题：FPUを持たない32bit MCU用GPSナビゲーションプログラムの高速化
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作者：Liou-Tzung Guo ; Takashi Asai ; Maiko Taruki 等
期刊名称：映像情報メディア学会誌
印刷版ISSN：1342-6907
电子版ISSN：1881-6908
出版年度：1999
卷号：53
期号：10
页码：1449-1454
DOI：10.3169/itej.53.1449
出版社：The Institute of Image Information and Television Engineers
摘要：This paper describes the design and implementation of an accelerated Global Positioning System (GPS) navigation program for a 32-bit embedded microcontroller unit without a floating-point processing unit. By optimizing the software floating-point library, introducing a new floating-point format and improving the math functions, the new GPS navigation program saves about 90% of the execution time compared to that implemented by a GNU C compiler and the precision is degraded by only 0.6%.
关键词：GPS;Navigation Processing;Position Calculation;Acceleration