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- Sequences with good pseudorandom properties and large linear span are widely used in the CDMA spread spectrum communication and cryptography. 具有優良偽隨機特性和較大線性複雜度的偽隨機序列廣泛應用於CDMA擴頻通信和密碼學中。
- It uses spread spectrum technology. 它使用擴頻技術。
- Wireless Spread Spectrum Communication and Its. 無線擴頻通信及其應用。
- Study of Spread Spectrum Receiver. 擴頻接收機的研究。
- By means of the good period correlation of pseudorandom code and using the synchronism technology, the data transmission ability of the spread spectrum communication system is effectively improved. 提出了一種多幅擴頻技術,利用偽隨機碼良好的周期互相關性,採用同步技術,有效地提高了擴頻通信系統數據傳輸能力。
- The Future of Spread Spectrum Communications in the Datong Coal Mine Group Co. 擴頻通信技術在大同煤礦的應用前景。
- Frequency-hopping spread spectrum (FHSS) was developed by the military for secure communications. 跳頻擴頻(FHSS)是由軍方為保密通信開發的。
- Spread spectrum technology competes in the unregulated portion of the radio electromagnetic spectrum. 擴頻技術是在無線電電磁頻譜中無條例管制的部分中競爭。
- Spread spectrum has two distinct flavors: direct sequence and frequency hopping. 該技術有兩個明顯的變型:直接順序與跳頻。
- Pseudo random sequence has broad applications in stream cipher, channel coding, and spread spectrum communication. 偽隨機序列在流密碼、通道編碼、頻通信等領域有著廣泛的應用.
- A better method for direct sequence spread spectrum(DSSS) receiver to decrease the acquisition time is proposed. 提出一種減小直接序列擴頻(DSSS)接收機信號捕獲時間的改進方法。
- A small scale digital trunking communication system based on the spread spectrum technology was presented. 介紹了一種基於擴頻技術的全雙工通信小型集群通信系統。
- Spread spectrum was conducted first, and then it was embedded into watermark by means of integer modulo. 嵌入水印時,先對水印信息進行擴頻,再利用基於模運算的方法嵌入水印。
- In the fifth chapter, hardware implementation of spread spectrum modulation module, sequence acquisition module, carrier NCO module and CORDIC module are given. 最後給出了擴頻模塊、載波數控振蕩器模塊、偽碼捕獲模塊和CORDIC模塊的硬體實現。
- This article introduces the principle of the closed link automatic frequency control system in Z2000 spread spectrum transceiver and how to control it. 本文闡述了Z2000接收機內的閉環自動頻率控制系統的工作原理,並說明如何控制這個系統。
- FFT algorithm has been developed to acquire high dynamic spread spectrum signals in spread spectrum RSP developed by BRIT. 討論了採用FFT演算法實現高動態擴頻信號快捕的一種方法。
- This paper introduces an AFC algorithm for a zero-intermediate frequency direct-sequence spread spectrum digital receiver. 介紹了一種零中頻直接序列擴頻 (DSSS)數字接收機的自動頻率控制 (AFC)演算法及其模擬和實現。
- Theoretical analysis shows that the EOE Logistic Map chaotic spread spectrum sequences are better than the original sequences. 理論分析表明 ;EOELogistic映射有限長度擴頻序列的奇 /偶相關特性較原序列有所改善 .
- A novel scheme for enhancing antijamming capabilities of spread spectrum communication systems is proposed in the paper. 本文提出了一種用於提高擴譜通訊系統抗干擾能力的新方案。
- This paper introduces GMSK into Direct Sequence Spread Spectrum(DSSS) communication system in order to obtain good performance of power spectrum. 本文將GMSK調製引入到直接序列擴頻通信系統中,以期獲得更好的功率譜利用率。