Photovoltaic cells are usually most responsive to photons in the visible and ultraviolet parts of the spectrum, but they can also respond to high-frequency infrared photons.
光伏电池通常对光谱中的可见光和紫外线波段的光子受激性最好,但高频红外光子也能激发电流。
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The next generation mobile communication 4g called will support very high data transmission rate. It's necessary to introduce technology with highfrequency utilization in limited frequency spectrum.
But the line located in the low frequency of ship noise spectrum has high intensity and stability. This fact provides new idea in estimating target motion parameters.