SER(symbol error rate) performance of PSK
標簽： performance symbol error rate
上傳時間： 2013-12-25
上傳用戶：aeiouetla
Its a simulink model to comare BER and Symbol error rate
標簽： simulink comare Symbol model
上傳時間： 2017-09-17
上傳用戶：cccole0605
在理論分析循環碼編碼和譯碼基本原理的基礎上，提出了基于單片機系統的(24，16)循環碼軟件實現編碼、譯碼的方案。仿真結果表明(24，16)循環碼能有效地克服來自通訊信道的干擾，保證數據通信的可靠及系統的穩定，使誤碼率大幅度降低。本論文對(24，16)循環碼的研究結果表明，可以有效地降低錯誤概率和提高系統的吞吐量，實現糾錯僅需要在接收端增加有限的存儲空間和計算復雜度，具有一定的實用價值。 Abstract: Based on analyzing the theory of encoding and decoding of cyclic code， this paper showed the schemes of encoding and decoding of(24，16)cyclic code by the software and based on microcontroller. Simulation results show that using (24，16) cyclic codes can effectively overcome the interference from communication channel， ensure the reliability and stability of data communication systems， and reduce the bit error rate greatly. The results of this paper show that by using the (24，16) cyclic code， the error rate can be reduced and the system throughput can be improved. Meanwhile， the system only needs to enlarge limited storage space and computation the complexity at the receiving end to realize error correction. Thus the (24，16) cyclic code has a practical value.
上傳時間： 2013-11-09
上傳用戶：gaoliangncepu
提高衛星通信信道傳輸效率的新途徑本 文 結 合 V SAT衛星通信系統設計中涉及衛星通信傳輸技術極為重要的 信道編碼與調制解調方式，探討了各種新型的衛星信道編碼與調制解調技術， 它們的原理及在衛星通信中的應用。在數字調制中，信號傳輸質量主要取決于 比特差錯率BER (Bit Error Rate)，因此要盡可能采用相同的每比特信號能量與 噪聲功率譜密度比(Eb/N.)的條件下，BER低的調制方式，以節省衛星功率 另外頻帶利用率要盡可能的高，以節省寶貴的衛星頻帶。本文還對各種不同的 差錯編碼與調制技術進行了實驗和詳細的性能比較。
上傳時間： 2015-09-16
上傳用戶：AbuGe
This program includes: [5 7] convolutional code (encoder) + BPSK + AWGN + MAP (decoder). It evaluates Bit Error Rate and plots it versus SNR(signal to Noise Ratio).
標簽： convolutional includes program encoder
上傳時間： 2015-12-24
上傳用戶：bruce5996
Matlab is an ideal tool for simulating digital communications systems, thanks to its easy scripting language and excellent data visualization capabilities. One of the most frequent simulation tasks in the field of digital communications is bit-error- rate testing of modems. The bit-error-rate performance of a receiver is a figure of merit that allows different designs to be compared in a fair manner. Performing bit-error-rate testing withMatlab is very simple, but does require some prerequisite knowledge
標簽： communications simulating scripting digital
上傳時間： 2014-01-02
上傳用戶：plsee
Process a binary data stream using a communication system that consists of a baseband modulator, channel, and demodulator. Compute the system s bit error rate (BER). Also, display the transmitted and received signals in a scatter plot.
標簽： communication modulator baseband consists
上傳時間： 2017-01-08
上傳用戶：ardager
The software is capable to simulate space time code [1] for QPSK modulation using different number of state. Examples of generator matrix up to 256 stetes are provided. Variable signal to noise ratio (SNR) might be applied to produce bit error rate (BER) or frame error rate (FER) curves.
標簽： modulation different software simulate
上傳時間： 2014-01-22
上傳用戶：qq1604324866
Introduction Matlab is an ideal tool for simulating digital communications systems, thanks to its easy scripting language and excellent data visualization capabilities. One of the most frequent simulation tasks in the field of digital communications is bit-error- rate testing of modems. The bit-error-rate performance of a receiver is a figure of merit that allows different designs to be compared in a fair manner. Performing bit-error-rate testing withMatlab is very simple, but does require some prerequisite knowledge.
標簽： communications Introduction simulating digital
上傳時間： 2017-03-20
上傳用戶：as275944189
A combined space鈥搕ime block coding (STBC) and eigen-space tracking (EST) scheme in multiple-input-multiple-output systems is proposed. It is proved that the STBC-EST is capable of shifting hardware complexity from the receiver to the transmitter without any bit error rate (BER) performance loss. A computation efficient EST algorithm is also proposed, which makes the STBC-EST affordable. Simulation results show that the STBC-EST with a modest feedback requirement results in a negligible BER performance loss compared with a dual system configuration.
標簽： multiple-input-m eigen-space combined tracking
上傳時間： 2014-01-13
上傳用戶：磊子226
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