在线咨询
eetop公众号 创芯大讲堂 创芯人才网
切换到宽版

EETOP 创芯网论坛 (原名:电子顶级开发网)

手机号码,快捷登录

手机号码,快捷登录

找回密码

  登录   注册  

快捷导航
搜帖子
楼主: creese

大家不用找了,GPS的资料这里全了,都看完就是高手!

[复制链接]
发表于 2009-3-29 21:24:36 | 显示全部楼层
实在太用心了。楼主
发表于 2009-3-29 21:25:45 | 显示全部楼层
太感激了,正想要这方面的资料
发表于 2009-3-29 21:59:49 | 显示全部楼层
太感激了,谢谢
发表于 2009-3-29 22:02:57 | 显示全部楼层
都是些很有帮助的资料啊
发表于 2009-3-30 00:12:44 | 显示全部楼层
eetop
发表于 2009-3-30 00:15:50 | 显示全部楼层
eetop
发表于 2009-3-30 14:41:15 | 显示全部楼层
哪位有IEC61108-1,发出来分享下啊
发表于 2009-3-30 18:14:40 | 显示全部楼层
abstract
Although originally developed for the military, the Global Po-
sitioning System (GPS) has proven invaluable for a multitude of
civilian applications. Each application demands specific perfor-
mance from the GPS receiver, and the associated requirements
often vary widely. This paper describes the architectures and
functions of civilian GPS receivers and then focuses on perfor-
mance considerations. The fundamental receiver measurements are
described and the quality of these measurements are related to the
aforementioned receiver architectures.
发表于 2009-3-30 18:16:30 | 显示全部楼层
loop configurations. The decision-directed loop , exhibits a 2  -dB sensitivity im-
provement as compared to other types of PLLs. Bandwidth and root deviation caused by
bilinear or boxcar transforms are solved by implementing a root-controled method. Using
this design makes the bandwidth of the digital loop close to desired values, and thus im-
proves carrier tracking by another 1 to 2 dB. A Kalman Filter adopts a soft-mode to deal
with the bit sign uncertainty and adjusts the bandwidth to minimize the mean square car-
rier tracking error. This leads to a 4 dB and 7 dB sensitivity improvement during weak
and strong amplitude ionospheric scintillations, respectively.
发表于 2009-4-1 22:25:46 | 显示全部楼层
谢谢LZ!!!!!!!!
您需要登录后才可以回帖 登录 | 注册

本版积分规则

关闭

站长推荐 上一条 /1 下一条

小黑屋| 手机版| 关于我们| 联系我们| 在线咨询| 隐私声明| EETOP 创芯网
( 京ICP备:10050787号 京公网安备:11010502037710 )

GMT+8, 2024-11-16 16:24 , Processed in 0.024038 second(s), 7 queries , Gzip On, Redis On.

eetop公众号 创芯大讲堂 创芯人才网
快速回复 返回顶部 返回列表