Download e-book for kindle: A Software-Defined GPS and Galileo Receiver: A by Kai Borre, Dennis M. Akos, Nicolaj Bertelsen, Peter Rinder,

By Kai Borre, Dennis M. Akos, Nicolaj Bertelsen, Peter Rinder, Søren Holdt Jensen

ISBN-10: 0817643907

ISBN-13: 9780817643904

ISBN-10: 0817645403

ISBN-13: 9780817645403

Satellite navigation receivers are used to obtain, method, and decode space-based navigation signs, similar to these supplied via the GPS constellation of satellites. there's an expanding desire for a unified open platform that might permit superior receiver improvement and layout, in addition to low cost trying out tactics for varied functions. This booklet offer hands-on exploration of recent applied sciences during this swiftly becoming field.
One of the original good points of the paintings is the interactive process used, giving readers the power to build their very own international Navigation satellite tv for pc platforms (GNSS) receivers. to build one of these reconfigurable receiver with quite a lot of functions, the authors speak about receiver structure according to software-defined radio (SDR) strategies. The presentation unfolds in a scientific, uncomplicated sort and is going from the fundamentals to state of the art research.
Additional positive factors and subject matters include:
* Presentation of simple sign buildings utilized in GPS and Galileo, the eu satellite tv for pc navigation system
* layout and implementation of a GPS sign generator
* Presentation and research of other equipment of sign acquisition—serial seek; parallel-frequency area seek; and parallel-code part search—as good as code/carrier monitoring and navigation facts decoding
* an entire GPS software program receiver carried out utilizing MATLAB code in addition to GPS and GIOVE-A sign records—allowing readers to alter numerous parameters and instantly see their effects
* MATLAB-based exercises
* A hands-on approach to checking out the cloth lined within the ebook: supplementary front-end equipment—which might be bought at http://ccar.colorado.edu/gnss—enables readers engaged on a home windows or LINUX approach to generate real-world information by way of changing analog signs to electronic signals
* Supplementary path fabric for teachers to be had at http://gps.aau.dk/softgps
* Bibliography of modern effects and complete index
The e-book is geared toward utilized mathematicians, electric engineers, geodesists, and graduate scholars. it can be used as a textbook in a variety of GPS know-how and sign processing classes, or as a self-study reference for somebody operating with satellite tv for pc navigation receivers.

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Extra resources for A Software-Defined GPS and Galileo Receiver: A Single-Frequency Approach

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11). 4 Doppler Frequency Shift In GPS we are faced with a Doppler frequency shift caused by the motion of the transmitter (satellite) relative to the GPS receiver. The Doppler frequency shift affects both the acquisition and tracking of the GPS signal. For a stationary GPS receiver the maximum Doppler frequency shift for the L1 frequency is around ±5 kHz and for a GPS receiver moving at high speed it is reasonable to assume that the maximum Doppler shift is ±10 kHz. 7. The two triangles indicate the early and the late ACF.

2. 6. Correlation properties of the C/A codes. Left: Autocorrelation rkk (n) of the C/A code for PRN 1. Right: Cross correlation rik (n) of the C/A codes for PRNs 1 and 2. 10) where n is the number of states in the shift registers. In this case, n equals 10. The remaining values satisfy the following inequality, Gold (1967): |rkk | ≤ 2(n+2)/2 + 1. 11) |rkk | ≤ 65. 11). 4 Doppler Frequency Shift In GPS we are faced with a Doppler frequency shift caused by the motion of the transmitter (satellite) relative to the GPS receiver.

The most common one is called a tiered code. This means it is built in layers so that when you have a strong signal you can acquire on a simple layer, with less time-domain possibilities, only switching to the full-length code when required. The minimum bandwidth is generally twice the chipping rate for simple codes, while for BOC codes it is twice the sum of chipping rate and offset code rate. Thus, the minimum practical bandwidth for the Galileo L1 OS is 8 MHz. For precise tracking of the code a bandwidth wider than the minimum is generally used.

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A Software-Defined GPS and Galileo Receiver: A Single-Frequency Approach by Kai Borre, Dennis M. Akos, Nicolaj Bertelsen, Peter Rinder, Søren Holdt Jensen


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