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Chapter 1 Outline
1-20
1.5 Technical Terms
This section explains the technical terms used in this manual.
BER: Bit Error Rate
The Bite Error Rate is the ratio of the total received bits and error bits.
It depends on the SNR (signal to noise ratio).
Signal Amplitude s
Standard Deviation of
Noise Amplitude n
Bit error ratio
Threshold
Figure 1.5-1 Bit Error Rate
When the distribution of the noise voltage amplitude is assumed to follow
a normal distribution, the standard deviation is assumed to be n and the
signal amplitude is s. Bit errors occur when the noise amplitude is larger
than the signal amplitude. Consequently, the probability of amplitude
occurring is the bit error ratio.
The bit error ratio, BER, is calculated by the following formula.
When the SNR is large (greater than 4), the relationship between SNR
and BER becomes linear when plotted on a semi-logarithmic graph.
BER
1
√2𝜋
𝑒𝑥𝑝
𝑥
2
/
𝑑𝑥
Содержание BERTWave Series
Страница 26: ...VI...
Страница 74: ...Chapter 1 Outline 1 48...
Страница 166: ...Chapter 4 Screen Operation 4 24...
Страница 210: ...Chapter 6 How to Operate Sampling Scope 6 16 Figure 6 2 2 4 Switching Graph Display...
Страница 237: ...6 2 Explanation of Windows 6 43 6 How to Operate Sampling Scope Figure 6 2 4 9 Measure Dialog Box Equalizer Tab...
Страница 239: ...6 2 Explanation of Windows 6 45 6 How to Operate Sampling Scope Figure 6 2 4 10 Measure Dialog Box Mask Test Tab...
Страница 246: ...Chapter 6 How to Operate Sampling Scope 6 52 Figure 6 2 6 2 Time Dialog Box CRU Tab When MP2110A 054 is installed...
Страница 309: ...6 9 Measuring Waveform 6 115 6 How to Operate Sampling Scope Figure 6 9 5 1 Marker Display...
Страница 322: ...Chapter 6 How to Operate Sampling Scope 6 128...
Страница 377: ...8 6 Adding an Option License 8 11 8 Maintenance 10 Click System Menu System Information and confirm the added option...
Страница 380: ...Chapter 8 Maintenance 8 14 7 Click Reinstall Windows 8 Click Yes...
Страница 432: ...Appendix A Specifications A 36...
Страница 457: ...D 3 Sampling Oscilloscope D 11 Appendix D 26G 53G CRU MP2110A 055 Table D 3 7 CRU Output Sensitivity Pass Fail...
Страница 458: ...Appendix D Performance Test Record Form D 12...
Страница 466: ...Index Index 6...