Wikipedia
Digital Signal 0 - Digital Signal 0 ( DS0) is a basic digital signalling rate of 64 kbit/s, corresponding to the capacity of one voice-frequency-equivalent channel. The DS0 rate, and its equivalents E0 and J0, form the basis for the digital multiplex transmission hierarchy in telecommunications systems..
Digital signal - The term digital signal is used to refer to more than one concept. It can refer to discrete-time signals that have a discrete number of levels, for example a sampled and quantified analog signal, or to the continuous-time waveform signals in a digital system, representing a bit-stream. In..
TutorVista
Undesirable Effects in the Course of Signal Transmission
Attenuation is undesirable because it reduces signal strength at the receiver. More serious, however, is distortion interference, and noise, which appear as alternations of the signal shape. Although such contaminations may occur at any point, the standard convention is to..
Difference Between Digital and Analog Signals?
What is the Difference Between Digital and Analog Signals? - A computer performs its tasks by turning on and off a series of electronic switches represented by the numerical digits of 0 and 1. A 0 is the code for off, and a 1 is the code for on. Combinations of these h..
What is the Difference Between Digital and Analog Signals?
A computer performs its tasks by turning on and off a series of electronic switches represented by the numerical digits of 0 and 1. A 0 is the code for off, and a 1 is the code for o..
Transmission lines
These are commonly used in power distribution (at low frequencies) and in communications (at high frequencies). Biodiversity is most simply defined as the variety of life and its processes. A transmission line may be defined as a device for transmitting or guiding energy from one point t..
Science Daily
Nervous Inhibitions: How Inhibitory Signal Transmission Between Nerve ... - Nerve cells from the spinal cord of VIAAT mouse mutants. The yellow dots indicate structurally intact synapses between nerve cells. They develop normally in the absence of GABA and .....
Touching a RF antenna remote increases transmission signal?This AM broadcast DX loop antenna is made from found parts and features a tuning capacitor made from aluminum foil and a couple of envelopes. This step-by-step construction video has its own web page with a schematic, mechanical drawings and design notes with helpful hints on how to deal with noise, best placement and more. Made with the help of conductive glue this project requires no soldering or special tools,
How do I get a decent digital TV signal?. The blogs become more influential than the old media. The newspapers are released for free. Wikipedia is the most complete encyclopedia ever. In 2007 Life magazine closes. The NYT sells its television and declares that the future is digital. BBC follows. In the main cities of the world people are connected for free. At the corners of the streets totems print pages from blogs and digital magazines. The virtual worlds are common places on the Internet for millions of people. A person can ...
Question : For an ideal digital processing system, the processor implements the difference eq: y[n] = .5y[n-1] + x[n] + x[n-2] The analog input is x(t) = 1 + 2cos(2000pi*t) + 3sin(3000pi*t) + 4cos(4000pi*t). What is the analog output y(t) with the sampling frequency of 6000Hz.
Answer : Find the Z transform of the digital filter, H(z). Then Y(z) = X(z) x H(z). Then take the inverse transform of Y(z) to get Y(n) and then Y(t). Note that the input signal is a sum of 4 terms, so you can use superposition and just add together 4 output terms.
Answer : Find the Z transform of the digital filter, H(z). Then Y(z) = X(z) x H(z). Then take the inverse transform of Y(z) to get Y(n) and then Y(t). Note that the input signal is a sum of 4 terms, so you can use superposition and just add together 4 output terms.
Question : I know I had eighteen months to get a converter box, but i was busy. Will I still have another 4 or 5 months to get the converter box, and can I sue someone if I lose my signal and become uninformed and unsafe.
Answer : Even though you are trying to be humorous (and failing miserably), I will forgo all smart azz remarks and just say that you have until June to get your converter box.
Answer : Even though you are trying to be humorous (and failing miserably), I will forgo all smart azz remarks and just say that you have until June to get your converter box.