CAJ | 학술논문

相关测速声呐是一种适用于水面航行的船舶或者水下航行的潜器的设备，主要用于获取载体速度信息、流速和海深，与惯导联合可用于载体的导航定位。相关测速声呐基于“波形不变性”原理，通过理论时空相关函数和数据时空相关函数的最小二乘拟合获取载体速度。构建了一套新的基于 ADSP-BF548平台的软件控制系统。新系统实现了网络、串口、CAN等通信方式；完成了基于FatFs R0.08b文件系统的数据存储功能；动态电源管理可以减小系统功耗，在电池供电时能延长有效工作时间。从系统通信、数据存储、电源管理、系统工作等方面对新平台软件系统的特点进行了介绍。
상관측속성눌시일충괄용우수면항행적선박혹자수하항행적잠기적설비，주요용우획취재체속도신식、류속화해심，여관도연합가용우재체적도항정위。상관측속성눌기우“파형불변성”원리，통과이론시공상관함수화수거시공상관함수적최소이승의합획취재체속도。구건료일투신적기우 ADSP-BF548평태적연건공제계통。신계통실현료망락、천구、CAN등통신방식；완성료기우FatFs R0.08b문건계통적수거존저공능；동태전원관리가이감소계통공모，재전지공전시능연장유효공작시간。종계통통신、수거존저、전원관리、계통공작등방면대신평태연건계통적특점진행료개소。
Correlation Sonar is usually used on the boat or the UUV for obtaining the velocity of vessel, current velocities and the depth of water. With the help of INS, it can help the vessel to locate its position and sail on the right direction. Correlation Sonar works on the principle of ‘waveform invariance’ and obtains the velocity of vessel by least-square fit-ting the theoretical correlation function and the data correlation function. In this paper, a new software control system is established on the platform of BF548. The new system has some communication modes, including TCP, UART, CAN. A file system based on FatFs R0.08b is built for storing data. The dynamic power system is used to reduce power con-sumption, which can help system to increase working time in using battery. The new system is introduced in the fol-lowing aspects:system communication, data storage, power management and working process.