您要查找的是不是:
- This shows how a pure frequency e.g. a pure sinusoid, which is an impulse in the frequency domain is spread out across frequency when it passes through the channel. 不过,在有些情况下,研究者只对幅度的波动感兴趣。针对这种情况,有两种方法可以仿真产生瑞利衰落信道。这两种方法的目的是产生一个信号,有着上文所示的多普勒功率谱或者等效的自相关函数。
- He beckoned to me from across the street. 他在马路对面向我招手致意。
- In order not to be late, she cut across the fields. 为了不迟到,她抄近路穿过田野。
- Lightning zigzagged across the sky. 闪电曲折地在天空划过。
- Taking a blind man across the street is a kind act. 扶盲人过马路是一种善良的行为。
- An expression of pain flitted across her face. 她脸上闪过一种痛苦的表情。
- Ferryboats ply across the English Channel. 渡船定期往返于英吉利海峡。
- Is there a right of way across these fields? 人们有权通过这些田地吗?
- A wave broke across the surface of the pool. 一个波浪从池水表面掠过。
- He comes across as someone who keeps on his words. 他看上去好像是一个说话算数的人。
- He dashed across the street and ran towards me. 他冲过马路,向我跑过来。
- One day she happened to run across Xiao liu. 有一天她碰巧见到小刘了。
- Many a time have we come across this same photo. 我们多次都见到过这同一张照片。
- She set off on a trip across Europe. 她出发去作横越欧洲的旅行。
- I can move very fast across the ice on skates. 我穿着冰鞋在冰上滑得很快。
- A sudden, thought flashed across his brain. 突然一种想法在他脑海里闪过。
- The ship plowed across the ocean. 轮船在大海上破浪前进。
- The stripling helped the old man across the road. 年轻的男子帮助那老人过马路。
- The children scuttle across the street. 我看见他急匆匆地穿街而过。
- There is a bolster across the head of the bed. 床头上有一个长枕垫。