PULSE MODULATION TECHNIQUES INTRODUCTION • Modulation is the process of frequency translation in which any one parameter(Amplitude‚ frequency or phase) of high frequency carrier signal is varied in accordance with instantaneous value of low frequency modulating signal. • Modulation is either analog or digital. INTRODUCTION • Many signals in modern communication systems are digital • Additionally‚ analog signals are transmitted digitally • Digitizing a signal results in reduced distortion
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CHAPTER 1 INTRODUCTION 1.1 Introduction Condition Monitoring is a technique of monitoring the operating characteristics of plants‚ equipment or systems in such a way that changes in the monitored characteristics can be used to predict the need for maintenance before a serious deterioration or breakdown occurs. It aims at detecting condition leading to catastrophic breakdown and loss of service‚ reducing maintenance overhauls‚ fine tuning of operating equipment‚ increasing production and operating
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known as: a) Harmonic Analysis b) Armstrong’s Principle c) Fourier Analysis d) Frequency Analysis Answer: c 2. The statement "information is proportional to bandwidth" is known as: a) Simpson Rule b) Shannon’s Law. c) Fourier’s Law. d) Hartley’s Law Answer: d 3. Given that a filter has a Q of 50 and a BW of 500 Hz‚ determine its resonant or center frequency. a) 100 kHz b) 25‚000 kHz c) 2500 kHz d) 250 kHz Answer: b 4. A device
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Introduction What is HFT? While there is no definite answer to what "high frequency" might be‚ it has been generally accepted that they are the type of trades automated by machines using proprietary algorithms and trade at very high speeds‚ often executing at least a few trades in under a second. HFT strategies can be broadly categorized into 4 groups: Liquidity Providence: Rebate Trading‚ Automated Market Trading. Pricing Inefficiency Arbitrage: Scalping‚ Latency Arbitrage‚ Statistical Arbitrage
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1. For each of the following (a through d)‚ indicate which is a variable and which is a constant: a. The number of minutes in an hour. Constant b. Patients’ systolic blood pressure Variable c. Pi (π) – e.g.‚ for finding the circumference of a circle Constant d. College students’ level of depression Variable 2. For each of the following research questions‚ identify the independent variable and the dependent variable within each case (a through e): Does a person’s age affect psychological
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radiated efficiently because of the antenna size. The high energy signal waves (1GHz − 1000 GHz) penetrate the ionosphere. 10 MHz frequencies get reflected easily from the ionosphere. Hence‚ signal waves of such frequencies are suitable for beyond-the-horizon communication. Question 15.2: * Answer (d) Answer: Space waves Owing to its high frequency‚ an ultra high frequency (UHF) wave can neither travel along the trajectory of the ground nor can it get reflected by the ionosphere. The signals having
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KEY TOPIC #001: FUNDAMENTAL CONCEPTS: 001A- What is the fundamental concept of the GMDSS? a) It is intended to automate and improve emergency communications in the maritime industry. 001B- The primary purpose of the GMDSS is? c) Automate and improve emergency communications for the world’s shipping industry. 001C- What is the basic concept of GMDSS? a) Search and rescue authorities ashore can be alerted to a Distress situation. b) Shipping in the immediate vicinity of a
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STATISTICS CHAPTER 1 NOTES DATA: consists of information coming from observations‚ counts‚ measurements‚ or responses. STATISTICS: is the science of collecting‚ organizing‚ analyzing‚ and interpreting data in order to make decisions. DATA SETS: -POPULATION: is the collection of all outcomes‚ responses‚ measurements or counts that are of interest -SAMPLE: is a subset or part of a population EXAMPLE OF POPULATION: The age of each resident in an apartment building EXAMPLE OF SAMPLE:
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starts with ’ba’. List names of all customers in descending order who has taken a loan in Nasik city. Display customer details having maximum loan amount. Calculate total of all loan amount. Q.3) Draw a histogram to represent the following frequency distribution using MS Excel. Size of farm In hectares 1-20 21-40 41-60 61-80 81-100 101-120 No. of farms 12 38 16 5 3 1 [10 Marks] Q.4) Journal [10 Marks] Q.5) Viva
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So‚ you think you’ve mastered your drone. You’ve practiced‚ flown your weight in LiPo batteries and you can yaw and roll with the best of them. Well‚ we’ve got some news. This may come as a shock‚ so we suggest taking a seat — line-of-sight drone flight is only a stepping stone! The real challenge is about to begin. Your drone is a nimble‚ split-second-decision-making‚ turn-on-a-dime‚ incredible-feats-a-plenty‚ flying machine! Shouldn’t you be in the cockpit along with it? It’s time to experience
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