Fsk Modulation and Demodulation
FSK MODULATION AND DEMODULATION PROGRAM USING MATLAB
LIST OF TABLES:
CHAPTER 1: INTRODUCTION. 1.1-INTRODUCTION TO WIRELESS MODEM. 1.2-INTRODUCTION TO FREQUENCY SHIFT KEYING 1.2.1-FSK MODULATOR 1.2.2-FSK DEMODULATION
CHAPTER 2: COMPONENT DESCRIPTION. 2.1-LIST OF COMPONENTS 2.2-DESCRIPTION OF FUNCTIONAL DIAGRAM 2.2.1 IC 555.
2.2.2 565 PLL.
CHAPTER 3: CIRCUIT DIAGRAM AND WORKING.
3.1-CIRCUIT DIAGRAM OF FSK MODULATOR USING IC555.
3.2-CIRCUIT DIAGRAM OF FSK DEMODULATOR USING PLL 555
CHAPTER 4: OPERATION OF FSK. 4.1-OPERATION OF FSK MODULATOR USING IC555. 4.2-OPERATION OF FSK DEMODUALTOR USING PLL 565.
CHAPTER 5: PROGRAMING USING MATLAB. 5.1-FSK MODULATION USING MATLAB. 5.2-FSK DEMODULATOR USING MATLAB.
CHAPTER 6: OUTPUT WAVEFORMS. 6.1-OUTPUT OF FSK MODULATOR. 6.2-OUTPUT OF FSK DEMODULATOR .
CHAPTER 7: CONCLUSION. 7.1-CONCLUSION.
7.2-REFERENCES.
List of Figures
Fig a: Pin diagram of IC 555
Fig b: Pin diagram of NE 565
Fig c: FSK Modulator using IC 555
Fig d: Fsk Demodulator using NE 565
Fig e: Fsk Output model
Fig f: Output waveform of FSK Modulator.
Fig g: Output waveform of FSK Demodulator.
CHAPTER -1
INTRODUCTION
1.1: INTRODUCTION TO WIRELESS MODEM:
A wireless modem is a type of modem which connects to a wireless network instead of a telephone system. When a mobile Internet user connects using a wireless modem, they're attached directly to the wireless ISP (Internet Service Provider) and can then access the Internet. Mobile phones, smartphones, and PDAs can be employed as data modems to form a wireless access point connecting a personal computer to the Internet (or some proprietary network). In this use the mobile phone is providing a gateway between the cellular service provider's data network technology and Point-to-Point Protocol (PPP) spoken by PCs. Almost all current mobile phone models support the Hayes command set, a standard method of controlling
LIST OF TABLES:
CHAPTER 1: INTRODUCTION. 1.1-INTRODUCTION TO WIRELESS MODEM. 1.2-INTRODUCTION TO FREQUENCY SHIFT KEYING 1.2.1-FSK MODULATOR 1.2.2-FSK DEMODULATION
CHAPTER 2: COMPONENT DESCRIPTION. 2.1-LIST OF COMPONENTS 2.2-DESCRIPTION OF FUNCTIONAL DIAGRAM 2.2.1 IC 555.
2.2.2 565 PLL.
CHAPTER 3: CIRCUIT DIAGRAM AND WORKING.
3.1-CIRCUIT DIAGRAM OF FSK MODULATOR USING IC555.
3.2-CIRCUIT DIAGRAM OF FSK DEMODULATOR USING PLL 555
CHAPTER 4: OPERATION OF FSK. 4.1-OPERATION OF FSK MODULATOR USING IC555. 4.2-OPERATION OF FSK DEMODUALTOR USING PLL 565.
CHAPTER 5: PROGRAMING USING MATLAB. 5.1-FSK MODULATION USING MATLAB. 5.2-FSK DEMODULATOR USING MATLAB.
CHAPTER 6: OUTPUT WAVEFORMS. 6.1-OUTPUT OF FSK MODULATOR. 6.2-OUTPUT OF FSK DEMODULATOR .
CHAPTER 7: CONCLUSION. 7.1-CONCLUSION.
7.2-REFERENCES.
List of Figures
Fig a: Pin diagram of IC 555
Fig b: Pin diagram of NE 565
Fig c: FSK Modulator using IC 555
Fig d: Fsk Demodulator using NE 565
Fig e: Fsk Output model
Fig f: Output waveform of FSK Modulator.
Fig g: Output waveform of FSK Demodulator.
CHAPTER -1
INTRODUCTION
1.1: INTRODUCTION TO WIRELESS MODEM:
A wireless modem is a type of modem which connects to a wireless network instead of a telephone system. When a mobile Internet user connects using a wireless modem, they're attached directly to the wireless ISP (Internet Service Provider) and can then access the Internet. Mobile phones, smartphones, and PDAs can be employed as data modems to form a wireless access point connecting a personal computer to the Internet (or some proprietary network). In this use the mobile phone is providing a gateway between the cellular service provider's data network technology and Point-to-Point Protocol (PPP) spoken by PCs. Almost all current mobile phone models support the Hayes command set, a standard method of controlling