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- Then digital matched filter (DMF), which is used to synchronize spread spectrum code, especially the multi-rate sampling in DMF is studied. 然后探讨了用于扩频码同步的数字匹配滤波器(DMF)，着重分析了DMF的多倍码速率采样问题；
- In the acquisition ways of the direct sequence spread spectrum code,sequence probability ratio test(SPRT) acquisition is a better way,acquisition time reduced 2 to 10 times compared with correlation acquisition. 在直扩编码的捕捉方法中;序贯捕捉法是一种较好的捕捉方法;与相关捕捉法相比其速度能提高2~10倍.
- The equivalent discrete receiver signal is modeled and denoted in matrix expression form.Also, the relations between taps of receiver equalizer and equivalent spread spectrum code matrix are deduced. 分析了衰落信道下的等效离散接收信号模型，给出其矩阵表达式，进而推导出了接收端均衡器的权系数与等效扩频码矩阵间的关系。
- Research on M-ary Spread Spectrum Coding 多进制扩频编码研究
- Optimization of spread spectrum code and design of spread spectrum pattern on JTIDS JTIDS系统扩频码的优选及扩频图案的设计
- Study of Acquiring Spread Spectrum Code System in Directed Sequence Spread Spectrum Communication 直接序列扩频通信中扩频码捕获系统的研究
- It uses spread spectrum technology. 它使用扩频技术。
- Wireless Spread Spectrum Communication and Its. 无线扩频通信及其应用。
- Study of Spread Spectrum Receiver. 扩频接收机的研究。
- spread spectrum code 扩频码
- spread spectrum code assigmnent 信道码分配
- Spatial Domain Image Watermarking Technology Based on Direct Sequence Spread Spectrum Codes 基于直接序列扩频码的图像空间域水印技术
- The characteristic and quantity of spread spectrum address code has great influence and restriction to CDMA system performance and capability improvement. 在CDMA系统中，扩频地址码的特点和数量在很大程度上影响和制约着CDMA系统性能和容量的提高。
- To despread and demodulate the signal correctly in the spread spectrum system, the PN code phase of the receiver must be synchronized with that of the input signal precisely. 在扩频通信系统中，为正确解扩和解调接收到的扩频信号，接收机的PN序列相位和接收信号的PN序列相位必须完全同步；
- The generating of pseudo random sequence is one of the key subjects to realize the spread spectrum technique upgrade for BPC low frequency time code radio station. 伪随机序列的产生是实现BPC低频时码发播台扩展频谱技术升级的一个重要环节。
- The Future of Spread Spectrum Communications in the Datong Coal Mine Group Co. 扩频通信技术在大同煤矿的应用前景。
- To solve the problem of tracking for direct sequence spread spectrum signals where data is non-coherent with code, a new method of tracking is presented. 摘要针对数据位和伪码周期非相参时直接序列扩频信号的跟踪问题，提出了一种新的跟踪方法。
- Frequency-hopping spread spectrum (FHSS) was developed by the military for secure communications. 跳频扩频（FHSS）是由军方为保密通信开发的。
- Spread spectrum technology competes in the unregulated portion of the radio electromagnetic spectrum. 扩频技术是在无线电电磁频谱中无条例管制的部分中竞争。
- M- ary spread spectrum coding 多进制扩频编码
