On the bases of analyzing triangle wave form modulated LFM, the method of using DDR (Dual Channel Directional Doppler range) technique to eliminate the influence of speed to range is presented.
在分析三角波调制的线性调频信号的基础上，提出了用DDR技术消除速度对测距的影响方法。
Part two: this part analyses the necessity of integrated marketing channel after an inquiry into its backgrounds, causes, theoretical bases and etc.
第二部分：从整合营销渠道的背景、原因、理论基础的角度分析整合营销渠道的必要性。
METHODS: the bases for the establishment of extended medicine history, its concept, basic mode and contents, and the channel for it to exert its function and its effects etc were introduced.
方法：介绍拓展型药历的建立依据、概念、基本模式和内容，及其发挥作用的途径和效果等。
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