Answer / ahmed mabrouk

n telecommunication, intersymbol interference (ISI) means a
form of distortion of a signal that causes the previously
transmitted symbols to have an effect on the currently
received symbol. This is usually an unwanted phenomenon as
the previous symbols have similar effect as noise, thus
making the communication less reliable. ISI is usually
caused by echoes or non-linear frequency response of the
channel. Ways to fight against intersymbol interference
include adaptive equalization or error correcting codes
(especially soft-decoding with Viterbi algorithm).

Answer / nidhi ahmed

in digital communication when nyquist sampling condition is
not satisfied then overlaping of signal takes place.in such
a way the signal get distorted and the information content
may loss.this overlapping is called isi.

why we are going for coding in communication signals?

6 Answers  

---

which is preferred in ckts for x-or operation a) 1 x-or gate b) 4 nand gates

1 Answers  

---

what is the ideal resistanceearth and why?????????????

0 Answers  

---

why cristal frequency is different in microcontrollers and crystal oscillators?

0 Answers  

---

What is a high-pass filter?

0 Answers  

---

---

What is a diode in reference to electronics?

0 Answers  

---

What amplifier

3 Answers  

---

Why capacitor input filter is preferred to choke input filter?

0 Answers  

---

What do you mean by Splitter?

0 Answers   NSN,

---

i need supervisor exam model qustion paper

4 Answers   Bhel, MOIL,

---

Which type of error was eliminated through the use of gray code

1 Answers  

---

hai friends.................the question paper pattern 100 aptitude....100 technical ....duration 120 minutes.....technical is cover all the previous competitive exams (jto,bel,,,,,) but prepare well basics of each subject,,

0 Answers   BDL,

---