Discussions on Feasibility of Expanding SW Broadcast Band from Spectrum Monitoring and International Coordination 从频谱监测和国际协调探讨短波广播频段扩展的可行性
In the evening this station change frequency and broadcast on another band 该电台晚上改变频率，在另一波段播音
Study of the rain attenuation in the satellite broadcast of Ku band Ku波段卫星广播中雨衰现象的研究
Based on this study, growers can either broadcast at sowing or band along the rows at a later time when corn is emerged, which will give flexibility to N saturated reference plots establishment. 基于本研究，种植者既可以在播种时撒施氮肥也可以在出苗后沟施氮肥，这就使氮饱和参考小区的构建具有一定的灵活性。
As for the FM broadcast with high frequency and narrow band, the principle and realization of bandpass sampling are researched later. And the effect of bandpass over-sampling to SNR is simulated thereafter. 针对调频广播信号的高频窄带特性，研究了带通采样原理及实现，并仿真研究了带通过采样倍数对SNR的影响。
