通信里面的天波通信用英语怎么说？

关键词是“天波”，天波有以下几种选择（你根据自己的专业从中选择），仅供参考：

Sky Wave ---- 天波，从地球离子层反射回来的电磁波（估计这是你所想要的“天波”）Skywave is the propagation of electromagnetic waves bent (refracted) back to the Earth's surface by the ionosphere. As a result of skywave propagation, a broadcast signal from a distant AM broadcasting station at night, or from a shortwave radio station (or during sporadic e season, a low band TV station) can sometimes be heard as clearly as local stations. (This is distinct from "groundwave" propagation, which is direct from transmitter to radio). Most long-distance HF radio communication (between 3 and 30 MHz) is a result of skywave propagation. Since the early 1920s amateur radio operators, limited to lower transmitter power than commercial radio, have taken advantage of skywave for long distance or DX communication.

atmospheric wave ----大气波，大气各种变量的周期性干扰。An atmospheric wave is a periodic disturbance in the fields of atmospheric variables (like surface pressure or geopotential height, temperature, or wind velocity) which may either propagate (traveling wave) or not (stationary wave). Atmospheric waves range in spatial and temporal scale from large-scale planetary waves (Rossby waves) to minute sound waves. Atmospheric waves with periods which are harmonics of 1 solar day (e.g. 24 hours, 12 hours, 8 hours... etc) are known as atmospheric tides.

spatial wave ----空间波

仅供参考。