By analyzing and studying the characteristic of many laser codes at home and abroad, and a new encoding method combining PIM and PWM, and the embodiment of its realizing method was pat forward.

• 通过分析和研究现有的国内外许多激光编码及其特点，提出了一种PIM编码与PWM编码混编的新型编码思想，并给出了具体的编码方法。