DSP implementation of GPS digital correlator | |
| Author | Supawan Khamkhongsak |
| Call Number | AIT Thesis no.ME-01-04 |
| Subject(s) | Signal processing--Digital techniques Global Positioning System |
| Note | A thesis submitted in prutial fulfillment of the requirements for the degree of Master of Engineering, School of Advanced Technologies |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ME-01-04 |
| Abstract | Navigation using Global Positioning System (GPS) is rapidly growing in many fields of application such as military, mapping, agricultme, transp011ation etc. The GPS receiver needs to be developed to satisfy that wide area of application. Nowadays, GPS receiver attempts to reduce in both size and weight of equipment. The method of component integration in conventional equipment is introduced. The implementation of software-based GPS receiver on digital signal processing (DSP) chip is the possible way to support that requirement because of the improvement in processor chip performance. This thesis study presents the model of digital correlator, a pai1 of digital receiver, which extracts navigation data from satellite broadcast signal. Actually, digital correlator is associated component between hardware and software but this study tries to design the whole system with software. In the implementation of the acquisition system, FFT search technique is chosen. Other system, tracking with BASS method is performed as well. Moreover, the methodology for creation satellite broadcast signal is provided. This replica signal is imp011ant for evaluation the operation of digital correlator system. Finally, the test in MATLAB environment shows the accuracy of digital correlator. Then, the complete digital correlator system is implemented in real-time environment by using TMS320C6711 digital signal processor. |
| Year | 2001 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ME-01-04 |
| Type | Thesis |
| School | School of Advanced Technologies (SAT) |
| Department | Department of Industrial Systems Engineering (DISE) |
| Academic Program/FoS | Microelectronics (ME) |
| Chairperson(s) | Lertsak Lekawat; |
| Examination Committee(s) | Nitin V. Afzulpurkar ;Itti Rittaporn ; Chumnarn Punyasai |
| Scholarship Donor(s) | Thailand Graduate Institute of Science and Technology of the National Science and Technology Development Agency |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2001 |