Global Information Lookup Global Information

Bit error rate information


In digital transmission, the number of bit errors is the number of received bits of a data stream over a communication channel that have been altered due to noise, interference, distortion or bit synchronization errors.

The bit error rate (BER) is the number of bit errors per unit time. The bit error ratio (also BER) is the number of bit errors divided by the total number of transferred bits during a studied time interval. Bit error ratio is a unitless performance measure, often expressed as a percentage.[1]

The bit error probability pe is the expected value of the bit error ratio. The bit error ratio can be considered as an approximate estimate of the bit error probability. This estimate is accurate for a long time interval and a high number of bit errors.

  1. ^ Jit Lim (14 December 2010). "Is BER the bit error ratio or the bit error rate?". EDN. Retrieved 2015-02-16. {{cite magazine}}: Cite magazine requires |magazine= (help)

and 23 Related for: Bit error rate information

Request time (Page generated in 1.0486 seconds.)

Bit error rate

Last Update:

bit synchronization errors. The bit error rate (BER) is the number of bit errors per unit time. The bit error ratio (also BER) is the number of bit errors...

Word Count : 2140

Error correction code

Last Update:

worst-case bit error rate, and then fail to work at all if the bit error rate is ever worse. However, some systems adapt to the given channel error conditions:...

Word Count : 4679

Error rate

Last Update:

Error rate, meaning the frequency of errors, can have the following uses: Bayes error rate Bit error rate Per-comparison error rate Residual bit error...

Word Count : 75

Bit rate

Last Update:

and computing, bit rate (bitrate or as a variable R) is the number of bits that are conveyed or processed per unit of time. The bit rate is expressed in...

Word Count : 3404

Residual bit error rate

Last Update:

The residual bit error rate (RBER) is a receive quality metric in digital transmission, one of several used to quantify the accuracy of the received data...

Word Count : 193

Symbol rate

Last Update:

represent or convey one or several bits of data. The symbol rate is related to the gross bit rate, expressed in bits per second. A symbol may be described...

Word Count : 2952

Viterbi error rate

Last Update:

digital transmission, the Viterbi error rate, also known as the Viterbi bit error rate (VBER), is a measurement of error in the transmission of digital Information...

Word Count : 190

Code rate

Last Update:

the gross bit rate or data signalling rate (inclusive of redundant error coding), the net bit rate (the useful bit rate exclusive of error correction...

Word Count : 244

Hamming code

Last Update:

linear error-correcting codes. Hamming codes can detect one-bit and two-bit errors, or correct one-bit errors without detection of uncorrected errors. By...

Word Count : 4044

Parity bit

Last Update:

A parity bit, or check bit, is a bit added to a string of binary code. Parity bits are a simple form of error detecting code. Parity bits are generally...

Word Count : 1678

ECC memory

Last Update:

Error correction code memory (ECC memory) is a type of computer data storage that uses an error correction code (ECC) to detect and correct n-bit data...

Word Count : 3401

Audio bit depth

Last Update:

mitigate these effects without changing the bit depth. Bit depth also affects bit rate and file size. Bit depth is useful for describing PCM digital signals...

Word Count : 3619

Error detection and correction

Last Update:

attaches a fixed number of check bits (or parity data), which are derived from the data bits by some encoding algorithm. If error detection is required, a receiver...

Word Count : 4200

Convolutional code

Last Update:

Reed–Solomon error correction codes that steepen the overall bit-error-rate curve and produce extremely low residual undetected error rates. Both Viterbi...

Word Count : 2815

Infrared Data Association

Last Update:

are physically secure data transfer, line-of-sight (LOS) and very low bit error rate (BER) that makes it very efficient. The mandatory IrPHY (Infrared Physical...

Word Count : 1495

Quadrature amplitude modulation

Last Update:

increasing the bit error rate requires a higher signal-to-noise ratio (SNR) by increasing signal energy, reducing noise, or both. If data rates beyond those...

Word Count : 1941

Bert

Last Update:

Bit error rate test, a testing method for digital communication circuits Bit error rate tester, a test equipment used for testing the bit error rate of...

Word Count : 247

Error function

Last Update:

that the error of a single measurement lies between −a and +a, for positive a. This is useful, for example, in determining the bit error rate of a digital...

Word Count : 7355

Spectral efficiency

Last Update:

measured in bit/s/Hz, or, less frequently but unambiguously, in (bit/s)/Hz. It is the net bit rate (useful information rate excluding error-correcting...

Word Count : 2139

Communication channel

Last Update:

model. The model may reflect channel performance measures such as bit rate, bit errors, delay, delay variation, etc. Examples of digital channel models...

Word Count : 1804

Hard disk drive

Last Update:

the error rate to be one uncorrected bit read error in every 1016 bits read, 2018 specifications for consumer SATA hard drives state the error rate to...

Word Count : 14048

Soft error

Last Update:

to interpret the noise as a data bit, which can cause errors in addressing or processing program code. The bad data bit can even be saved in memory and...

Word Count : 4528

Coding gain

Last Update:

same bit error rate (BER) levels when used with the error correcting code (ECC). If the uncoded BPSK system in AWGN environment has a bit error rate (BER)...

Word Count : 765

PDF Search Engine © AllGlobal.net