| 1. | Spread spectrum modulation ssm
扩频调制 |
| 2. | The concrete performance index of the spread spectrum modulator and whole plan of design have appeared in the article
文中给出了扩频调制器的具体性能指标和整体设计方案。 |
| 3. | The new cdma system offers mai - free operation in both up - and downlink transmissions , which can significantly enhance the system capacity
由于采用了特殊的偏移栈扩频调制方式，可提高数据发送速率，改善带宽效率。 |
| 4. | This article will be discussed a kind shortwave section spread spectrum modulator based on software radio which will be used in maritime naval vessel communication
本文将讨论一种用于海上舰船通信的基于软件无线电的短波段扩频调制器。 |
| 5. | In chapter 4 , the spread spectrum modulation sequence performance is discussed on the base of the multiple address selected ability and secret communication
在第四章中，在基于多址选择能力和保密通信的基础上对扩频调制序列性能进行了讨论。 |
| 6. | And the spreading modulation , radiation signal modulation and choosing of waveform parameters are also discussed , which is the base of the receiver designing
同时对扩频调制方式、射频信号调制方式以及波形参量的选择进行了重点的论述，并对扩频通信系统的相关指标进行了计算。 |
| 7. | Equally , spreading spectrum technology can improve the performance of watermark technology greatly , but it will increase the capacity of channel and the calculation of the algorithm as cost
但由于采用扩频调制后，一个水印信息要用一个周期的伪随机序列调制，因此会增加嵌入的水印量。 |
| 8. | This paper introduced the advantage and the operational principle of ad9857 . it illustrates the application of ad9857 , which bases the platform of dds + dsp , in all digital ds - ss bpsk modulation
摘要介绍数字正交上变频器ad9857的突出优点和工作原理，并分析其在基于dds + dsp平台的全数字bpsk扩频调制中的应用。 |
| 9. | We completed a hardware roof of spread spectrum receiver . we finished the whole process of modulate and demodulate in the roof . the mode of modulate is bpsk modulate
本文在完成理论分析的同时制作了一个扩频接收机的硬件平台，在该课题中还在该平台上实现了信号的扩频调制和解调解扩整个过程，该调制方式为bpsk调制。 |
| 10. | In chapter one , the transmission characteristics for the wireless channel and the performance parameters of the spread spectrum modulated sequence are analyzed . at the same time , the research background and significance are introduced
第一章概述了无线信道传输的特点和扩频调制序列的性能指标，介绍了论文研究背景及其意义，指出了论文研究的主要内容。 |
