Questions tagged [bit-error]
The bit-error tag has no usage guidance.
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Exercise on PPM modulation bit rate
A digital communication system uses N=15 identical routes. The modulation used is 2-PPM. Calculate the value of $$ \varepsilon_b/N_0 $$ on the exit from the first route so that a final error ...
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Error correction technique for 4 kB of data with 10-15% bit errors in an embedded microcontroller?
I'm working with an embedded project that uses a 4 kB buffer. Every once in a while something happens which introduces 10-15% bit errors, scattered throughout the buffer. Can someone please recommend ...
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Error probability of BPSK with intersymbol interference
Consider an AWGN channel with BPSK modulation. Assume that
the information bits are i.i.d. Bernoulli with parameter 0<p<1,
we have ISI due to a timing offset at the transmitter, and
the decoder ...
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Data rate for an ASK modulation [closed]
A telephone line with a bandwidth of 3 kHz and an SNR of 6 dB. I am asked to calculate the maximum bitrate on this line and the error probability, knowing that ASK modulation is used.
For ASK ...
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Why does NOR flash have 0% bad blocks?
Why does NOR flash memory have 0% bad blocks and ECC is not mandatory?
From my understanding, NOR flash and NAND flash are made of similar flash cells (they are only "externally" wired in ...
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How to calculate Bit Error Rate of an electronic equipment with several parts?
I am currently studying integrity of data into electronic systems facing Single Event Effects.
I am focusing on data integrity inside an electronic equipment.
I've been through a lot of papers ...
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SECDED in the presence of more than two errors
Is there a way to calculate the number of errors that will be caught (or missed) by SECDED when there are more than two errors? I'm thinking of an issue such as a badly-timed data strobe, where the ...
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Do ASCII or Unicode Bit-Level Anagrams exist? [closed]
Is there such a thing as a bit-level ASCII anagram, that forms a natural language word when the bits are interpreted as ASCII from left to right, but a different natural language word when interpreted ...
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Effect on sampling time on BER
Just for some background context:
A digital signal has jitter present on it. In this situation there is
only random jitter (RJ), which is unbounded and normally distributed.
When the digital signal ...
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computation bit error as sum(abs)
I am working on a realisation the convolutional encoder/decoder with constraint length K=7. Encoder and decoder were implemented and currently I am testing these functions
My test file looks like:
<...
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Decoding an unknown serial bitstream that does not fit 8-N-1
I am looking at an RS-485 signal using a scope and an analyzer (saleae). This is running a mystery bus (see below for more information). I would like to know how to fix my frame errors. I can't begin ...
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CAN: End-Of-Frame for detecting stuffing errors?
The end-of-frame consists of 7 recessive bits. It is often written that it is used to detect stuffing errors by a receiver. I also read that if the 7th bit is driven to dominant level, the transmitter ...
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how to understand the capacity in binary symetric channel (BSC)
According to the wiki about the BSC (binary symetric channel),
given the bit flip rate p,
the capacity is derived as :
H(p) = -p*log2(p) – (1-p)log2(1-p)
C = 1 - H(p).
the error probability p ...
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How does radiation produce transient bit errors in DRAM?
Ionizing radiation can produce transient bit errors in volatile RAM. What is the exact mechanism by which this occurs?
E.g., is there a threshold energy level for a single photon or neutron to ...
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Is a bit error rate close to 1 just as desirable as one that is close to 0?
Let me explain the premise. If you have a communication system, and you know with a very good confidence margin what the bit error rate is, would you be able to exploit the properties of high bit ...
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