Chinese translation for "code acquisition"
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- 码的捕获
Related Translations:
- Example Sentences:
| 1. | As a result , pseudorandom code acquisition and tracking , carrier recovering , error correction and decoding functions are needed in the if digital receiver
因此，其中频数字接收机需要完成伪随机码捕获跟踪、载波恢复、纠错译码等功能。 | | 2. | This paper investigates the key technology of the ds - cdma system - psendonoise ( pn ) code acquisition technology . various pn code acquisition scheme has been introduced here
本文对ds - cdma系统中的关键技术?扩频序列的捕获?进行了深入的研究，介绍了扩频序列的多种捕获方案。 | | 3. | However , the longer length of c / a code , the more hardware resource and power it cost . this dissertation commits research on algorithm of c / a code acquisition in satellite navigation position system , and compares the acquisition means of digital differential matched filter ( ddmf ) with traditional means , and also achieves ddmf with the vhdl language and fpga platform
扩频码的周期的加长会给卫星导航定位系统带来许多相应的好处,但问题也就随着之而来了,扩频码的周期越长,同步捕获所需得的时间就越长,而且若用传统的并行捕获方法,将极大的耗费硬件资源,而且系统功耗会随之增大。 | | 4. | At last the algorithm of ddmf is achieved by the investigation tool of altera company ? quartus ii and the vhdl language , and its ip core is also achieved which is used not only in the satellite navigation position system , but also in the long pn code dsss system . ddmf investigated in the dissertation gives a good way to design the rapid pn code acquisition in the beidou project , and the technology has the definite theory and practice significance
此外还应用altera公司的最新的fpga开发工具quartusiiv5 . 1 ,采用了国际标准的硬件描述语言? vhdl语言,对数字差动匹配滤波器和传统匹配滤波器算法予以实现,开发了该算法的软ip核,可以对所应用的扩频码长度, a / d采样后的数据量化阶数,所用扩频码等可进行随意改写。 | | 5. | Because the hybrid acquisition scheme ( combines parallel search with serial search ) based on the correlator provides the flexibility in the trade - off between the mean acquisition time and system complexity and is easy to implement , it ? focus on the scheme here . on the other hand , this paper analyzes the effect of multiple access inference ( mai ) on the code acquisition performance for the multipath fading channels
基于相关器解扩的串-并混合方案由于有着可在平均捕获时间和电路复杂程度（这是捕获电路的两个重要指标）这两个技术指标间灵活折衷的优点和易于实现的特点，本文的重点就放在该方案中。 | | 6. | The signal format of gps is analyzed , the principle models and mathematical models are established , the ber performance is analyzed in a channel interfered with wide - bandwidth awgn , narrow - bandwidth awgn , transmitted signal , single - tone signal respectively . based on the results above interference methods are discussed and simulated . then the performance of code acquisition and code trace of a digital gps receiver are discussed . the modem of linkl 1 and link4a are modeled and their ber performances are analyzed and simulated in channel s interfered with awgn , single - tone signal and multi - tone signal respectively
建立了jtids的收发终端的数学模型，分析它在噪声干扰、相关干扰、互相关干扰下的误码性能，提出较佳的干扰方法和干扰码型，并进行仿真模拟；分析了gps的信号格式，建立了gps的原理框图模型、信号数学模型，并对其在宽带噪声干扰、窄带噪声干扰、转发干扰、单频干扰等情形下的误码性能进行了分析比较，提出相对较佳的干扰方法，并做了计算机模拟，针对一数字式gps接收机中扩频码捕获与跟踪环的特性进行分析；建立了link11和link4a数据链调制解调数学模型，对它们在噪声干扰、单音干扰、多音干扰等下的误码性能进行分析，最后对干扰情况进行了仿真模拟。 | | 7. | After establishing the model of intermediate frequency direct sequence spreading spectrum ( if dsss ) receiver , comparing and analyzing several conventional code acquisition methods , code and carrier two - dimension fast acquisition scheme based on two - dimension fft is proposed . finally , the situation for two targets is analyzed
首先在建立了中频直扩接收机的模型之后,本文对常用的伪码捕获方法进行了详细地分析和比较,然后提出了本文的基于二维傅立叶变换技术的快速捕获方法,并且分析了两个目标时的情况。 |
- Similar Words：
- "code 46" Chinese translation, "code absence" Chinese translation, "code access control" Chinese translation, "code access security" Chinese translation, "code access security(cas)" Chinese translation, "code address" Chinese translation, "code administration" Chinese translation, "code alphabet" Chinese translation, "code alphanumeric" Chinese translation, "code and answering pendent" Chinese translation
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