中文摘要：

研究风廓线雷达的探测威力和我国对流层大气湍流常数（Cn^2）随季节的变化规律.结合目前对流层风廓线雷达的研制经验以及我国北方地区的试验数据进行分析与探讨,介绍了风廓线雷达的组成原理,推导了风廓线雷达方程和最大探测距离估算公式.各地区Cn^2的变化是造成目前风廓线雷达探测距离估算误差的主要原因,试验数据表明,我国北方地区对流层-↑Cn^2（均值）随季节的起伏小于边界层-↑Cn^2随季节的起伏幅度.此外,信号处理损耗也是风廓线雷达威力估算时一个不可忽视的因素.

英文摘要：

Studies the measuring distance of wind profiling radar and the rules of change of structure coefficient for troposphere atmosphere turbulence（Cn^2） for different seasons in China.According to the test records of wind profiler in recent years,analyzed and discussed experimentation data of north China and the principles of wind profiler compostion were introduced.Wind profiler radar equations and formulas of maximum measuring distance estimation were also derived.It is concluded that Cn^2 changes in different areas is the main reason for wind profiler measuring distance estimation errors.The test data proves the undulation of -↑Cn^2 with seasons is not very obvious and smaller than that of the boundary-layer atmosphere.Furthermore,the loss of signal processing is not the ignored factor for wind profiler measuring distance estimation.