Shekhar shegokar

            UNDERWATER COMMUNICATION INTRODUCTION Underwater communication is one of the most difficult communication as compared to  Land and space communication. Advancement in technology makes wireless communication in our daily lives, but still under sea and ocean the wireless communication idea is still achievable.  PROBLEMS: Multipath Propagation.       2. Time variations of the channel.       3. Use of Acoustic Waves.             4.  Attenuation.  Some of Technology : Wired communication is one of fastest communication, But submarines and ships and other underwater vehicles travel long distances, so we can’t provide wires for long distances. Mobile Phones are not used because of the EMW waves Principle,this creates a huge attenuation in underwater . Li Fi  Technology : Li Fi (Light Fidelity) i...

   IMAGE PROCESSING ALGORITHM IN   BIOMETRIC VERIFICATION What is Biometric Verification? Any method by which a person can be uniquely recognised by evaluating one or more differentiating biological attributes is referred to as biometric verification.  Fingerprints, hand and earlobe geometry, retina patterns, voice prints, and written signatures are examples of biological identifiers. Types of biometric Verification: Fingerprint identification: Because of its dependability, ease, and historical success, fingerprint ID is one of the most widely used forms of biometric authentication. To swiftly authenticate the user's identity, almost all cell phones use fingerprint identification. The absence of replicability of this technology contributes to its reliability. Manipulation of another person's fingerprint to gain access to a device or physical location would be difficult for the normal individual. Even the fingerprint hacks disclosed in 2016 required not only the indiv...