摘要
波形存储型红外遥控学习不受波形编码格式以及协议类型限制,数据编码压缩是其关键所在。以红外载波频率38 kHz来计量脉冲宽度,将脉冲波形转化为一维有符号数数组并聚类;利用先验知识构建固定长度的静态字典,对短脉冲以2 bit编码,长脉冲以多个编码短脉冲串联构成。实际测试表明,红外遥控学习数据编码压缩率高,编码数据还原红外遥控波形控制准确。
Waveform storage infrared control transmitter is unrestricted from coding format and protocol type, and data compres- sion and coding is the key issue. The pulse width is measured with IR carrier frequency 38 kHz. The high / low pulse waveform is turned into a one-dimensional array of signed numbers and clustered. A fixed-length static dictionary is built through prior knowledge. The short pulses are encoded as 2-bit, and the long pulses are made up of some encoded short pulses in series. Actu- al tests show that the data compression rate is high, and transformed infrared remote waveform can control accurately.
出处
《计算机与现代化》
2014年第4期195-198,共4页
Computer and Modernization
基金
湖南省科技厅基金资助项目(2012GK3114
2013GK3106)
关键词
数据压缩
聚类
静态字典编码
红外遥控
data compression
clustering
static dictionary coding
infrared remote control
