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pcm
语音编码方案的选取对移动通信系统的通话质量、信道容量等有重要影响。本文讨论了TD-SCDMA系统中AMR语音编码的自适应机制,同时分析了AMR中代数码本线性预测(ACELP)算法及实现过程。该方案可以在一块TMS320C5510上实现。(The selection of voice coding schemes for mobile communication systems the quality of the call, such as channel capacity have had a significant impact. In this paper, TD-SCDMA System AMR Adaptive speech coding mechanism, at the same time analysis of AMR in the generation of Digital Linear Prediction (ACELP) algorithm and the realization of the process. The program can be achieved in a TMS320C5510.)
- 2009-04-27 22:26:09下载
- 积分:1
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Communication-by-SerialPort
实现串口通信 可以收发数据 可以是数字也可以是ASCII(Serial communication)
- 2013-07-24 10:10:28下载
- 积分:1
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OFDM103
基于深度限幅的OFDM峰均比抑制器的设计(限幅法是最简单直接的一种,以降低误码率性能 频谱畸变和计算复杂度为主要代价。)(matlab OFDM)
- 2014-09-22 06:23:37下载
- 积分:1
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61549816REXOSReference
高通,rex,OS,很好的文档~~~!!!(Qualcomm, rex, OS, a very good document ~ ~ ~)
- 2009-07-09 19:45:52下载
- 积分:1
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GPSGSM
说明: G P S和G S M 双定位终端的软硬件设计与实现
:随着移动定位技术的发展, 单纯的签子G P S 的定位终端或者荃于移动网络的定位终端都将无法浦足用户的俩求。前者的G P S定
位信号受地形及建筑物的影晌,会存在定位盲区 后者定位精度和定位能力受到移动网 络的限制。该文提出一种集成了G P S定位和G S M
网络定位技术的定位终端,阐述了它的软硬件的设计和实现。实验结果表明,该定位终端结合了G P S和G S M网络两种定位方式的优点,(D e s i g n a n d I m p l e me n t a t i o n o f t h e T r a c k i n g T e r mi n a l I n t e g r a t i n g
GP S wi t h GS M P o s i t i o n i n g T e c h n o l o g y
J I A NG X i r u i , C HE N G Z h e n l i n , F AN G J i n y u n , Z HA NG L i v n g
( I n s t i t u t e o f C o m p u t e T e c h n o l o g y , C h i n e s e A c a d e m y o f S c i e n c e s , B e i j i n g 1 0 0 0 8 0 )
b s t r a c t ] Th e t r a c k i n g t e r mi n a l p l a y s a n i mp o r a n t rl e i n t h e n a v i g a t i o n a n d p o s i t i o n i n g s y s t e m. Ho w t o
t h e t r a c k i n g t e r mi n a l i s a k e y p rb l e m t o t h e d e s i g n e r a n d u s e r . T h i s p a p e r p r e s e n t s a me t h o d wh i c h
i mpr v e t
i n t e g r a t e s
p e r f o r m a n c e a n d p r e c i s i o
GP S wi 比GS M p o s i t i o n i n g
h n o l o g y i n o n e t e r mi n a l , a n d s p e c i f i e s t h e s o f)
- 2009-08-27 09:06:42下载
- 积分:1
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commassist
visual C++ MFC 环境下 串口的连接,收发数据的实现,串口探测工具部分功能的实现(Serial port connection)
- 2013-07-20 17:03:57下载
- 积分:1
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Blind-Beamforming-
基于盲波束形成的波达方向──多普勒稳健估计(Based on Blind Beamforming DOA ─ ─ Doppler robust estimation)
- 2013-12-26 12:38:50下载
- 积分:1
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YouToo
说明: sip开发相关资料集,为sip开发人员提供了很丰富的资料,适合初学者.
- 2010-03-23 17:00:26下载
- 积分:1
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chuankoumoban
使用MFC编写的windows环境下的串口操作工程模板(Serial port operation project templates written using MFC windows environment)
- 2012-10-19 18:29:45下载
- 积分:1
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ch03
杨建国老师的通讯原理课件,第三章模拟信号的调制与解调,主要讲述信号产生与调制,射频特性,解调,MSK、GMSK、PSK、QPSK、BPSK、QAM等原理(Yang Jianguo teacher communication principles of courseware, the third chapter of the analog signal modulation and demodulation, and focuses on the signal generation and modulation, the RF characteristics, demodulation, MSK, GMSK, PSK, QPSK, as BPSK, QAM and other principles of)
- 2012-06-12 10:45:39下载
- 积分:1