Ugradbeni sustav niske potrošnje za detekciju podvodne ultrazvučne komunikacije

master's thesis

• Title (english): Low-power Ultrasound Wake-up Interface for Detecting Underwater Communication
• Author: Luka Korman
• Mentor: Vedran Bilas (mentor)
• Committee member: Vedran Bilas (predsjednik povjerenstva)
• Committee member: Darko Vasić (član povjerenstva)
• Committee member: Željka Lučev Vasić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2019-09-27, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

U ovom radu proučene su vremensko-frekvencijske karakteristike signala podvodnog
akustičkog modema te je razrađen postupak detekcije komunikacije. Na temelju
karakteristika signala i razrađenog postupka detekcije, izveden je ugradbeni sustav za
detekciju podvodne komunikacije koji se sastoji od prijemnika sa spuštanjem
frekvencije i sustava za izdvajanje i prepoznavanje značajki signala. Ugradbeni sustav
na frekvenciji 2,5 kHz ima potrošnju od 104,4 μW.

Abstract (english)

In this thesis, the time-frequency characteristics of the underwater acoustic modem
signal are studied and the communication detection procedure is worked out. Based
on the signal characteristics and the worked out detection procedure, a embedded
underwater communication detection system consisting of a frequency conversion
receiver and a system for extracting and recognizing signal features was constructed.
A 2.5 kHz embedded system has a power consumption of 104.4 is micro W.

• Keywords: spuštanje frekvencije; Nanomodem; preklapanje spektara
• Keywords (english): frequency downconverter; Nanomodem; aliasing
• Language: croatian
• URN:NBN: urn:nbn:hr:168:338160
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2020-01-07 19:13:21