Signal Processing Application

This was a Group Experiment performed by Aishwarya Bannore, Varad Choudhari, Gauri Joijode, Amisha Khimani and Apoorva Laharia. We choose "Morse Code Generator from a given Analog Signal" as an application.

Problem Definition : 1) Accept Analogy input and convert it into Digital Signal(Binary).
2) Covert Binary to Morse and implement the dots and dashes as 0 and 1 respectively.
    (Dots = 1 = LED ON, Dash = 0 = LED OFF)

 Patent Review: Morse-to-binary code translator

Patent No.-US 3038030 A
Inventor- Bradley Murray
Publication Date: June 5,1962

Introduction: Currently, conversion of Morse signal into binary signal is done using analog techniques and a shift register. This patent was filed in order to make the existing complex circuit, more simpler.

Review: The proposed system has been implemented using digital techniques and consists of a multi-input binary converter. This system provides a counter for generating pulses indicative of dashes and dots in ratio 2:1. It also provides a converter capable of producing correct digital information with deviations upto 33% from ideal.

IEEE Paper Review : Compression Using Morse Code and Data Patterns

Publishers : A. Nugaliyadde              
                 K.N. Manatunga
                 K.H.D. Perera
Publication Date: February 2014

The paper recommends a bit pattern for the international Morse code that reduces the compression factor. In Morse code, the mostly used letters in words have the least number of signal patterns allowing it to be easy to create and transmit the message. The size of a sentence can be reduced by 34.59% by the proposed method.

Methodology: The Morse Code can be directly used in the data compression. The bits allocated will be 0 for Morse codes‘_’and 1 for‘.’ using a binary converter. Similarly the numbers will take the values according to the Morse code. The space and full stop can be recognized as 1010 and 01010 accordingly. To identify the number of bits allocated for each letter a set of bits is allocated. Since the maximum number of bits allocated for a character is five bits, an octal number format can be used to locate the number of bits given to each character.

By implementing the mentioned techniques,
1. High data compression for texts was approximately 25-30%
2. There is increase in efficiency of transferring data

Future Scope:
1. High level of cryptography can be introduced
2. Bit pattern can be introduced to encrypt text to prevent third party data access
3. An algorithm can be introduced to improve compression

third party accessing the data.

third party accessing the data.

Patent : https://drive.google.com/file/d/0B9FCQ_loE3PaNEZ1bk92NGVyc2s/view?usp=sharing
Reviewed IEEE Paper: https://drive.google.com/file/d/0B9FCQ_loE3Paa3BqeF93WVZwd3c/view?usp=sharing

IEEE Paper - https://drive.google.com/file/d/0B9FCQ_loE3PaY0dlanJTcXlNbUE/view?usp=sharing
Plagiarism Report - https://drive.google.com/file/d/0B9FCQ_loE3PaakNGcXhsMHpaOG8/view?usp=sharing