CAJ | 학술논문

针对两轴电视经纬仪动基座跟踪目标时,视轴无法隔离载体扰动造成图像旋转现象,提出一种基于数学平台的电子消旋方法,采用捷联式惯导+DSP+FPGA的硬件系统通过反向旋转和双线性插值对图像进行消旋和填充,完成视频恢复,该系统已成功应用于小型舰载经纬仪上,可完成720×576×24大小彩色视频图像的恢复,图像质量良好,输出帧频25 f/s,系统自身的输出误差在1个象元内.
침대량축전시경위의동기좌근종목표시,시축무법격리재체우동조성도상선전현상,제출일충기우수학평태적전자소선방법,채용첩련식관도+DSP+FPGA적경건계통통과반향선전화쌍선성삽치대도상진행소선화전충,완성시빈회복,해계통이성공응용우소형함재경위의상,가완성720×576×24대소채색시빈도상적회복,도상질량량호,수출정빈25 f/s,계통자신적수출오차재1개상원내.
An electronic elimiating rotation method based on mathematic platform is put forward, which can be used on image rotation by carrier perturbation when the video theodolite tracks target on the active pedestal. The hard- ware system with strapdown inertial navigation equipment, DSP and FPGA, can elimate rotation and fill the image by reverse rotation and bilinear interpolation. This system developed has successfully applied in minitype shipboard theodolite, can complete the restoration of 720 × 576 × 24 color video image, and achieve frame frequency with 25 frame/s for one fine quality image and less then one pure pixel level of maximum pixel error.