... second row shows a navigation data
bit that has a data rate of
50 Hz; thus, a data bit is 20 ms long and contains
20 C
/
A codes. Thirty data bits make a word that is 600 ms long as shown in
the ... a
50 Hz rate.
5. 5 C
/
A CODE AND DATA FORMAT
(1,2 ,5)
The C
/
A code is a bi-phase modulated signal with a chip rate of 1.023 MHz.
Therefore, the null-to-null bandwidt...
... j
2
z
(2 .59 )
Fundamentals of Global Positioning System Receivers: A Software Approach
James Bao-Yen Tsui
Copyright
2000 John Wiley & Sons, Inc.
Print ISBN
0-4 7 1-3 8 15 4-3 Electronic ISBN 0-4 7 1-2 0 05 4-9
7
CHAPTER ... Jr., Global Positioning System: Theory and Applications, vols.
1 and
2, American Institute of Aeronautics and Astronautics...
... the
degradation of the signal-to-noise ratio. Spilker
(11)
indicated that a 1-bit ADC
degrades the signal-to-noise ratio by
1.96 dB and a 2-bit ADC degrades the
signal-to-noise by
0 .55 dB. Many commercial ... preferred approach, in
actual laboratory experiments Figure
6.5b is used because of the availability of
amplifiers.
In Figure
6.5b, the M
/
A COM ANP-C-11 4 -5 antenna with...
... 0
x(n)e
j2pnk
/
N
(8.40)
Fundamentals of Global Positioning System Receivers: A Software Approach
James Bao-Yen Tsui
Copyright
2000 John Wiley & Sons, Inc.
Print ISBN
0-4 7 1-3 8 15 4-3 Electronic ISBN 0-4 7 1-2 0 05 4-9
1 65
CHAPTER ... data points are placed in cascade to generate a total
of
51 2 data points. There is no discontinuity from data...
... History of GPS Development 1
1
.3 A Basic GPS Receiver 2
1
.4 Approaches of Presentation 3
1
.5 Software Approach 3
1
.6 Potential Advantages of the Software Approach 4
1
.7 Organization of the ... user
position.
1 .5 SOFTWARE APPROACH
This book uses the concept of software radio to present the subject. The soft-
ware radio idea is to use an analog-to-digital conv...
... maximum
Fundamentals of Global Positioning System Receivers: A Software Approach
James Bao-Yen Tsui
Copyright
2000 John Wiley & Sons, Inc.
Print ISBN
0-4 7 1-3 8 15 4-3 Electronic ISBN 0-4 7 1-2 0 05 4-9
32
CHAPTER ... efficiency of the antenna and the accuracy of the
solid angle of the antenna because the power cannot be cut off sharply at a
de...
... 1996.
Fundamentals of Global Positioning System Receivers: A Software Approach
James Bao-Yen Tsui
Copyright
2000 John Wiley & Sons, Inc.
Print ISBN
0-4 7 1-3 8 15 4-3 Electronic ISBN 0-4 7 1-2 0 05 4-9
54
CHAPTER ... in
Parkinson, B. W., Spilker, J. J. Jr., Global Positioning System: Theory and Appli-
cations, vols.
1 and 2, American Institute of...
... input data do not arrive in a continuous
manner. This operation is suitable for a block of data. The input data are sam-
pled with a
5 MHz ADC and stored in memory. Only 1 ms of the input data are
used ... CODE SIGNALS
FIGURE 7.6 Effect of phase transition on the delay and multiplication method.
search for 1 ms of data to acquire a satellite. Longer data are needed for acqui...
... navigation data in subframe
3
into
ephermeris data
clear angmat navd rymkmat
load d:
/
gps
/
big data
/
srvy
8310
;
angmat
ang;
ptnumat
transpt;
rymkmat
fintime;
[st navd]
navdat(angmat);
∗
find naviga ... of Global Positioning System Receivers: A Software Approach
James Bao-Yen Tsui
Copyright
2000 John Wiley & Sons, Inc.
Print ISBN
0-4 7 1-3 8 15 4-3 Electronic ISB...
... Count 81
5. 11 Parity Check Algorithm 82
5. 12 Navigation Data from Subframe 1 88
5. 13 Navigation Data from Subframes 2 and 3 90
5. 14 Navigation Data from Subframes 4 and
5 Support Data 92
5. 15 Ionospheric ... formats. Some content that appears in
print, however, may not be available in electronic format.
Library of Congress Cataloging-in-Publication Data
Tsui, James Bao-yen.
Fun...