Imagining a robot to behave just like a human is one of those new-age fantasies of almost everyone who can bottle even a tiny glimpse of a vision of the future. For people like us who sometimes manage to think of things other than just the daily survival have a lot of room for all kinds of strange dreams. Sometimes this also leads us to build all kinds of blue-sky thinking. Stepping off the quicksand let me classify ourselves as a group of individuals who have much time to think so as to recycle
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DAB, DVB 1 Multipath can be described in two domains: time and frequency Time domain: Impulse response time time time Impulse response Frequency domain: Frequency response time time time Sinusoidal signal as input f Frequency response time Sinusoidal signal as output Modulation techniques: monocarrier vs. multicarrier Channel Channelization Guard bands N carriers Similar to FDM technique B Pulse length ~ N/B – Data are shared among several carriers and simultaneously
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pulse response of the measuring receivers The RF generator provides a continuous wave signal at the different frequencies selected for bands C and D. Then, the AWG produces the gating signal that modulates the carrier by switching on and off the CW signal, creating a pulse according to CISPR16-1-1 requirements. Finally, the modulated pulse is feed directly to the EMI measuring receiver. The amplitude of the CW signal and the gating duration are defined in Table IV for bands A to D. TABLE IV. REFERENCE
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Optimal Power Allocation in Multi-Relay MIMO Cooperative Networks: Theory and Algorithms Abstract Cooperative networking is known to have significant potential in increasing network capacity and transmission reliability. Although there have been extensive studies on applying cooperative networking in multi-hop ad hoc networks, most works are limited to the basic three-node relay scheme and single-antenna systems. These two limitations are interconnected and both are due to a limited theoretical
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Abstract. The speech signal enhancement is needed to obtain clean speech signal from noisy signal. For multimodal optimization we better to use natural-inspired algorithms such as Firefly Algorithm (FA). We compare the firefly algorithm with particle swarm optimization technique. The proposed algorithm contains three module techniques. Those are preprocessing module, optimization module and spectral filtering module. The signals are taken from Loizou’s database and Aurora database for evaluating
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around Australia in 2006. The REV requires numerous amounts of measured physical quantities for both data logging and controlling the car’s systems. For each measured physical quantity, a sensor is required to convert this quantity into an electrical signal. Safety is always first priority, and for this reason hydrogen leak safety sensors were given the highest priority on the list of required sensors. 2 HYDROGEN CONCENTRATION MEASUREMENT Hydrogen gas is extremely flammable having an EL1 of 4
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some basic data logging. The DHT sensors are made of two parts, a capacitive humidity sensor and a thermistor (http://adafru.it/aHD). There is also a very basic chip inside that does some analog to digital conversion and spits out a digital signal with the temperature and humidity. The digital signal is fairly easy to read using any microcontroller. DHT11 vs DHT22 We have two versions of the DHT sensor, they look a bit similar and have the same pinout, but have different characteristics. Here
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equalizINIMUM mean-square estimation is an old and ma- ers, etc. In the previous formalization of the least-squares ture subject, pervading throughout much of the com- problem, we do not need formal stochastic characterizations munication and signal processing literature [l]. Specifically, of the sequences but deal only with observed deterministic various versions
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3.3 SYSTEM OVERVIEW 3.3.1 INFRARED SENSORS IR Sensors work by using a specific light sensor to detect a select light wavelength in the Infra-Red (IR) spectrum. By using an LED which produces light at the same wavelength as what the sensor is looking for, you can look at the intensity of the received light. When an object is close to the sensor, the light from the LED bounces off the object and into the light sensor. This results in a large jump in the intensity, which we already know can be
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electrical signal output. Light sensors are more commonly known as “Photoelectric Devices” or “Photo Sensors” because it converts Light energy (photons) into Electricity (electrons). With the help of screwdriver one can adjust the sensitivity of sensor. The light sensor measures how much light is shining on it. It has two modes: “LIGHT” and “DARK”. In “light” mode, the more light shines on the sensor, the higher the signal it sends out. In “dark” mode, it’s just the opposite- the signal increases
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