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2ASK.二进制幅度键控
- ASK（二进制幅度键控）是一种最简单的数字信号的载波传输，本文通过对数字信号的2ASK调制，解调在不同信噪比的情况下误码率分析，得出不同信噪比下的误码率。 通过对2ASK的仿真更好的理解了数字调制系统的组成以及各模块的功能。 ,ASK (binary amplitude shift keying) is a simple digital signal carrier transmission, this paper 2ASK digital signal modulation, demod
wimax_ofdm_ber_snr
- ofdm simulation, cantains ber, snr. it s short code ofdm mimo, wimax wide.
ber
- Bit error probability curve for QPSK mimo 1*2, Bit error probability curve for QPSK mimo 1*4-Bit error probability curve for QPSK mimo 1*2, Bit error probability curve for QPSK mimo 1*4
simulation.example.with.matlab
- We simulate uncoded BER of BPSK modulated data as a function of SNR -in an AWGN channel -in a Rayleigh fading channel -in an AWGN channel when direct sequence spreading is used and compare results to the theoretical ones. We assum
noise
- This matlab file is used to generate noise signal which is added to the transmitted signal in an AWGN channel. Based on the SNR value the power of the noise is determined.
BER
- C program to calculate the BER performance of BPSK modulation in an AWGN channel. The program takes the file "BPSK" containing voltage levels and passes it in an AWGN channel with a given SNR. The received message is then Hard decision decoded and th
A_Novel_Structure_of_Signal_Demodulation_in_High_
- In this paper, a novel demodulation structure in high-frequency (HF) channel is introduced and studied.Frequency-offset estimation, ractionally spaced adaptive equalization and carrier recovery techniques are involved.Frequency-offset correction is
54379
- We investigate the case of independent Rayleigh faded paths between antenna elements and find that with high probability extraordinary capacity is available. Compared to the baseline n = 1 case, which by Shannon’s classical formula scales as one
l11-demo1
- Introduce the Multiuser Detection (MUD) for DS-CDMA system Give two MUD methods for DS-CDMA system –Decorrelating MUD –Subspace MMSE MUD Compare them with traditional decorrelating detection Study the BER vs. S
GMSK
- 为了提高移动通信系统中数据传输的有效性能,降低GMSK调制系统的误码率. 首先对GMSK调制系统进行分析,得到不同BT值GMSK调制的移动通信系统误码率和带宽的关系.通过引入具有纠错性能的编码技术,降低信息传输的误码率,提高系统的有效性. 本文给出了引入编码技术的GMSK调制系统的仿真模型,仿真结果表明,在相同的信噪比下,系统的误码率降低了1～2dB.-This paper mainly intends to improve the performance of the communicatio
uncodedBER
- the file which is uploaded is the uncoded systtem technique which we simulated. it gives the BER vs Snr curve.The un-coded system is simulated is by using randomly generated numbers and it s passed over the AWGN channel.the output of the matlab file
dtect-small-target
- An Efficient Method of Small Targets Detection in Low SNR. infrared image .single fly target-An Efficient Method of Small Targets Detection in Low SNR. infrared image .single fly target
design-of-irregular-ldpc-for-biawgn-channels-with
- design of irregular ldpc for biawgn channels with snr mismtach
gjlj
- 重点研究 了低信噪比﹑多径瑞利衰落信道条件下，基于高阶累积量的OFDM信号盲识别技 术。提出了利用奇数阶累积量区分OFDM信号与单载波信号的方法，并对基于三 阶和五阶累积量的算法进行了仿真分析。 -﹑ Focus on the low SNR multipath Rayleigh fading channel conditions, based on cumulant OFDM signal blind identification technology. Made a dist
OFDM-signals-with-low-SNR
- 针对认知无线电系统中正交频分复用( OFDM )信号参数估计这一重要问题, 利用OFDM 信号的循环谱实现了符号周期的盲估计。-For cognitive radio systems, orthogonal frequency division multiplexing (OFDM) signal parameter estimation of this important issue, the cyclic spectrum of the OFDM signal to achieve the
capacity-of-frequency-selection-channel
- With the higher and higher of transmitting rate, the signal bandwidth iswider and wider, and the p ractical channel p resents the frequency selective fading character. In this paper, a multi - input multi - output (M IMO) channelmodel under frequ
SNR-estimation
- Signal to Noise Ratio in MIMO-OFDM
sensor
- sensor AWGN channel M=8 N=4 SNR=1:14 include 8 psk-sensor AWGN channel M=8 N=4 SNR=1:14 include 8 psk
cyclostationary-at-low-snr
- cooperative cyclostationary in cognitive radio at low SNR , a good reference
snr
- SNR improvement in Rayleigh fading channel with Maximal Ratio Combining