Implementation Numerical Controlled Oscillator(NCO) for Digital Down Converter (DDC)
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Universiti Malaysia Perlis
2008
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my.unimap-32852017-11-29T07:09:22Z Implementation Numerical Controlled Oscillator(NCO) for Digital Down Converter (DDC) Husni Diyana, Sarbini Nukala Suryanarayana Murthy, Prof. (Advisor) Wireless communication systems Signal theory (Telecommunication) Digital electronics Signal processing Access is limited to UniMAP community. In this modern era, most of the signal processing tasks in wireless communications systems are performed digitally. The use of digital signal processing are greatly increasing in digital modulator and demodulator applications. A Digital Down Converter (DDC) converts a digitized real signal centered at an intermediate frequency (IF) to a baseband complex signal centered at zero frequency. The DDC will select the frequency band of interest and shift it down in frequency, which allows the data rate required to retain all the information to be much lower, and consequently reduces the complexity of any further processing. In addition to down converting, the DDC reduces the sampling rate to enable subsequent signal processing at lower speeds. In DDC, there are three parts namely Numerical Controlled Oscillator (NCO), frequency mixer and the Finite Impulse Response (FIR) Filter. In this final year project, NCO is implemented on a DSP Processor (Texas Instruments) using Code Composer Studio (CCS) software. The code has been downloaded and tested on a TMS320VC5416 DSK Board for a 1 MHz carrier modulated with 1 kHz signal. 2008-11-20T04:16:50Z 2008-11-20T04:16:50Z 2008-04 Learning Object http://hdl.handle.net/123456789/3285 en Universiti Malaysia Perlis School of Computer and Communication Engineering |
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Malaysia |
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Universiti Malaysia Perlis |
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English |
| topic |
Wireless communication systems Signal theory (Telecommunication) Digital electronics Signal processing |
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Wireless communication systems Signal theory (Telecommunication) Digital electronics Signal processing Husni Diyana, Sarbini Implementation Numerical Controlled Oscillator(NCO) for Digital Down Converter (DDC) |
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Access is limited to UniMAP community. |
| author2 |
Nukala Suryanarayana Murthy, Prof. (Advisor) |
| author_facet |
Nukala Suryanarayana Murthy, Prof. (Advisor) Husni Diyana, Sarbini |
| format |
Learning Object |
| author |
Husni Diyana, Sarbini |
| author_sort |
Husni Diyana, Sarbini |
| title |
Implementation Numerical Controlled Oscillator(NCO) for Digital Down Converter (DDC) |
| title_short |
Implementation Numerical Controlled Oscillator(NCO) for Digital Down Converter (DDC) |
| title_full |
Implementation Numerical Controlled Oscillator(NCO) for Digital Down Converter (DDC) |
| title_fullStr |
Implementation Numerical Controlled Oscillator(NCO) for Digital Down Converter (DDC) |
| title_full_unstemmed |
Implementation Numerical Controlled Oscillator(NCO) for Digital Down Converter (DDC) |
| title_sort |
implementation numerical controlled oscillator(nco) for digital down converter (ddc) |
| publisher |
Universiti Malaysia Perlis |
| publishDate |
2008 |
| url |
http://dspace.unimap.edu.my/xmlui/handle/123456789/3285 |
| _version_ |
1643802689371373568 |
| score |
13.222552 |