Arithmetic Implementation of FSK Based on DSP

2013 ◽  
Vol 443 ◽  
pp. 31-34
Author(s):  
Ming Quan Shi
Keyword(s):  
Information Transmission ◽  
Data Transmission ◽  
Sine Wave ◽  
Modulation Scheme ◽  
Digital Signals ◽  
Graphic Display ◽  
Low Speed ◽  
Speed Data Transmission

FSK is a prior modulation scheme in the information transmission. It has many advantages such as convenience to realize, anti-noise and antiattenuation, so it is widely used in middle and low-speed data transmission. This paper designed a FSK system based on TMS320VC5402 DSP, The scenario analysed the arithmetic of FSK and realized it using C. This system produced FSK signal using keying. That means, two sine waves which have different independent frequencies represented the 0s and 1s of digital signals respectively, the data of one sine wave was composed of 64 points. The arithmetic stored the modulation data at a specific address; the author can observe the output wave by graphic display tools. Finally, the author verifies the accuracy and feasibility of this FSK system.

High-Speed Data Transmission Techniques Using Raised Cosine Signaling

2010 ◽  
Vol 459 ◽  
pp. 252-259 ◽  
Author(s):  
Yasushi Yuminaka
Keyword(s):  
Data Transmission ◽  
High Speed ◽  
Pulse Shaping ◽  
Signal Integrity ◽  
Rectangular Pulse ◽  
Crosstalk Noise ◽  
Digital Signals ◽  
Limited Bandwidth ◽  
High Speed Data ◽  
Speed Data Transmission

In this paper, we propose new pulse-shaping techniques using raised cosine signaling instead of using conventional digital signals (rectangular waves), to reduce Inter-symbol interference (ISI) and crosstalk noise. Unlike a rectangular pulse, the raised cosine pulse takes on the shape of a sinc pulse that minimizes ISI. Also, limited bandwidth of the signal can reduce crosstalk noise. We show the simulation and experimental results of the raised cosine signaling scheme to show the new signaling method plays a critical part in maintaining signal integrity in high-speed VLSI systems.

Analysis of Inter-Satellite Optical Wireless Communication System

2017 ◽  
Vol 7 (10) ◽  
pp. 10
Author(s):  
Rajbir Singh
Keyword(s):  
Wireless Communication ◽  
Optical Networks ◽  
Data Transmission ◽  
High Speed ◽  
Open Space ◽  
Communication Link ◽  
Optical Wireless Communication ◽  
Optical Wireless ◽  
High Speed Data ◽  
Speed Data Transmission

Optical networks are bandwidth efficient networks are used for long haul communication providing seamless data transfer. For high speed data transmission in open space between different satellites, Inter-satellite Optical wireless communication (IsOWC) is widely used .In this paper we have evaluated the performance of IsOWC communication link for high speed data transmission .The performance of the system is evaluated on the basis of qualitative parameters such as Q-factor and BER using optisystem simulator.

Experimental demonstration of high-speed data transmission based on Gaussian pulses for IR-UWB radio-over-fiber systems

2017 ◽  
Author(s):  
Elizaveta P. Grakhova ◽  
Albert Kh. Sultanov ◽  
Irina L. Vinogradova ◽  
Ivan K. Meshkov ◽  
Anna V. Andrianova ◽  
...  
Keyword(s):  
Data Transmission ◽  
High Speed ◽  
Radio Over Fiber ◽  
Experimental Demonstration ◽  
High Speed Data ◽  
Uwb Radio ◽  
Speed Data Transmission
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