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Description: --==* 海图数据--==*
1、全国100万和25万拼接海图数据
shape格式，全国拼接，通过将纸质海图扫描成图。
2、长江以北全图拼接海图数据
shape格式，2006年出，通过将纸质海图扫描成图，全图拼接，包括长江以北海域，有等深面，水深值等图层，最大比例达到1比1万。
3、全海域详细海图数据
shape格式，2006年出，数字海图原数据，标准分幅，一共220多幅，覆盖全国海域，要素齐全，最大比例达到1比1500。
4、一套海图导航系统
内含380多张中国海图，最大比例达到1比2000，更新时间为2006年3月28日，接上GPS便可导航，同时可以详细查看中国海区情况，特别是港口处很详细。
5、长江航道图
1:5000，2005年4月，mapinfo格式。
Platform: |
Size: 13417106 |
Author: wdss |
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Description: JUPITER芯片的接口和数据格式的说明，-JUPITER-chip interface and data format,
Platform: |
Size: 353280 |
Author: say |
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Description: 卫星定位模块 GARMIN GPS 25LP 单片机开发的源代码,拿来就用.-Satellite positioning module GARMIN GPS 25LP SCM developed source code, brought on by.
Platform: |
Size: 1024 |
Author: wsxtg |
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Description: 51单片机对GPS_25LP的程序和电路，简单易懂，保证好用-51 Microcontroller GPS_25LP procedures and circuits, easy to understand, to ensure ease of use
Platform: |
Size: 551936 |
Author: LLL |
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Description: 利用Matlab生成GPS C/A 码的基带信号。
（1）产生卫星PRN 号码为“5”的一组C/A 码；
（2）循环生成25 页的导航数据，GPS 时间可填入一固定的已知数值；
（3）生成C/A 码扩频信号，每个C/A 码码片给出4 个采样数据；
（4）基带信号采用方波信号，电平为0 和1，占空比为50 ％，不加入噪声，进一步生成某个特定的中频信号。-Matlab generated using GPS C/A code base band signal. (1) generation of satellite PRN number is " 5" a set of C/A code (2) loop generates 25 of the navigation data, GPS time can fill a fixed known value (3) to generate C/A code spread spectrum signal, each C/A code chip gives the four sampling data (4) baseband signals using square wave signal, level 0 and 1, 50 duty cycle, not to join the noise generated further a specific frequency signal.
Platform: |
Size: 45056 |
Author: 李伟 |
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Description: 一个通用模型的相干多径误差调制信号跟踪BOC,在寻求使用全球导航卫星系统（GNSSs）导航精度的主要挑战是减少测量和星历误差。统称现代化将减少测量误差，提供了一个更大的全球导航卫星系统各种努力，需要新的卫星研制和发射，并因此发生过了很多年的时间尺度。全球定位系统（GPS）的用户，星历误差是最近完成调用的传统精度改进倡议，或L-AII的，只涉及修改地面优点的努力目标。这一努力的结果在一个永久的广播星历误差减少25％[1]。-A General Model of Multipath Error for Coherently Tracked BOC Modulated Signals
Platform: |
Size: 702464 |
Author: 李洋 |
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Description: 基于GPS的高精度时钟在线校频与授时研究.pdf,算法是基于最小二乘法的，同步精度达到-25-+25ns-Online GPS-based precision clock frequency and timing of the school, the algorithm is based on the least squares method, the synchronization accuracy reaches-25-+25 ns
Platform: |
Size: 915456 |
Author: 沈宣佐 |
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Description: The TAPR PIC-Encoder (PIC-E) is a general-purpose
packet radio encoder based on the Microchip, Inc.
PIC16F84 PIC microcontroller. The PIC-E was
designed to provide a generic interface between the
digital world (in the form of serial data streams) and
the amateur packet radio world (in the form of AX.25
packets) and is fully programmable by the user. For
example, the user can program the PIC
microcontroller to take serial data from a GPS receiver
or weather station and transmit it as formatted packet
frames. Virtually any data that can be provided to
the device as a serial input stream can be reformatted
and transmitted as 1200 bps packet radio.
Platform: |
Size: 64512 |
Author: Antor |
Hits:
Description: The TAPR PIC-Encoder (PIC-E) is a general-purpose
packet radio encoder based on the Microchip, Inc.
PIC16F84 PIC microcontroller. The PIC-E was
designed to provide a generic interface between the
digital world (in the form of serial data streams) and
the amateur packet radio world (in the form of AX.25
packets) and is fully programmable by the user. For
example, the user can program the PIC
microcontroller to take serial data from a GPS receiver
or weather station and transmit it as formatted packet
frames. Virtually any data that can be provided to
the device as a serial input stream can be reformatted
and transmitted as 1200 bps packet radio.
Platform: |
Size: 61440 |
Author: Antor |
Hits:
Description: The TAPR PIC-Encoder (PIC-E) is a general-purpose
packet radio encoder based on the Microchip, Inc.
PIC16F84 PIC microcontroller. The PIC-E was
designed to provide a generic interface between the
digital world (in the form of serial data streams) and
the amateur packet radio world (in the form of AX.25
packets) and is fully programmable by the user. For
example, the user can program the PIC
microcontroller to take serial data from a GPS receiver
or weather station and transmit it as formatted packet
frames. Virtually any data that can be provided to
the device as a serial input stream can be reformatted
and transmitted as 1200 bps packet radio.
Platform: |
Size: 20480 |
Author: Antor |
Hits:
Description: The TAPR PIC-Encoder (PIC-E) is a general-purpose
packet radio encoder based on the Microchip, Inc.
PIC16F84 PIC microcontroller. The PIC-E was
designed to provide a generic interface between the
digital world (in the form of serial data streams) and
the amateur packet radio world (in the form of AX.25
packets) and is fully programmable by the user. For
example, the user can program the PIC
microcontroller to take serial data from a GPS receiver
or weather station and transmit it as formatted packet
frames. Virtually any data that can be provided to
the device as a serial input stream can be reformatted
and transmitted as 1200 bps packet radio.
Platform: |
Size: 62464 |
Author: Antor |
Hits:
Description: The TAPR PIC-Encoder (PIC-E) is a general-purpose
packet radio encoder based on the Microchip, Inc.
PIC16F84 PIC microcontroller. The PIC-E was
designed to provide a generic interface between the
digital world (in the form of serial data streams) and
the amateur packet radio world (in the form of AX.25
packets) and is fully programmable by the user. For
example, the user can program the PIC
microcontroller to take serial data from a GPS receiver
or weather station and transmit it as formatted packet
frames. Virtually any data that can be provided to
the device as a serial input stream can be reformatted
and transmitted as 1200 bps packet radio.
Platform: |
Size: 27648 |
Author: Antor |
Hits:
Description: The TAPR PIC-Encoder (PIC-E) is a general-purpose
packet radio encoder based on the Microchip, Inc.
PIC16F84 PIC microcontroller. The PIC-E was
designed to provide a generic interface between the
digital world (in the form of serial data streams) and
the amateur packet radio world (in the form of AX.25
packets) and is fully programmable by the user. For
example, the user can program the PIC
microcontroller to take serial data from a GPS receiver
or weather station and transmit it as formatted packet
frames. Virtually any data that can be provided to
the device as a serial input stream can be reformatted
and transmitted as 1200 bps packet radio.
Platform: |
Size: 43008 |
Author: Antor |
Hits:
Description: 利用Matlab生成GPS C/A 码的基带信号。
（1）产生卫星PRN 号码为“5”的一组C/A 码；
（2）循环生成25 页的导航数据，GPS 时间可填入一固定的已知数值；
（3）生成C/A 码扩频信号，每个C/A 码码片给出4 个采样数据；
（4）基带信号采用方波信号，电平为0 和1，占空比为50 ％，
不加入噪声，进一步生成某个特定的中频信号-The baseband signal is generated using Matlab GPS C/A code. (1) generate satellite PRN number " 5" is a set of C/A code (2) loop generates 25 navigation data, GPS time can be filled with a fixed known value (3) generated C/A code spread spectrum signals, each C/A code chip sample data is given 4 (4) a baseband signal using a square wave signal with a level of 0 and a duty cycle of 50 , the noise was not added, and further generates a a specific frequency signal
Platform: |
Size: 175104 |
Author: 陈伟 |
Hits: