Description: 这是一个横虚惊概率的程序，也叫CFAR，可以实现雷达图像数据的恒虚警检测-This is a cross false alarm probability procedures, also known as CFAR, can realize the radar image data CFAR detection Platform: |
Size: 1024 |
Author:朱阳阳 |
Hits:
Description: A FFT-based partial matched filter (PMF)
acquisition threshold setting method for fast GPS acquisition is
presented. Normal distribution and numerical fitting technique
instead of real decision variable (DV) distribution are used in
derivation to approximate the threshold expression, and the
modification method for the threshold expression is also
presented. The threshold expression is based on the individual
FFT Doppler bin false alarm probability rather than the
convention whole detector false alarm probability. The
proposed threshold expression can be adjusted according to
the false alarm probability, the noncoherent accumulation
(NCA) length and the estimated noise variance. Furthermore
we discuss the implementation of zero-padding FFT with its
advantage and limitation. The performance is superior
compared to the reference method in terms of signal-to-noise
ratio (SNR) when detection and false alarm probabilities are
used as measurement criteria. Platform: |
Size: 280576 |
Author:zohreh |
Hits:
Description: 雷达检测处理仿真程序，包括噪声背景下的检测，波动目标的检测，检测概率与虚警概率的计算-the simulation code for radar detection,including detection in the presence of noise,detection of fluctuating target, probability of false alarm and probability of detection Platform: |
Size: 19456 |
Author:张晓斌 |
Hits:
Description: 为了提高认知无线电中感知用户对授权用户(主用户) 的检测概率,提出一种新的基于循环
谱统计量的主用户信号检测算法. 该算法利用循环谱离散频域平滑方法,对信号的循环谱在循环频
率处建立合理的检测统计量,然后求解得到对应不同虚警概率的判决门限,以使感知用户能检测信
噪比更低的授权用户信号.-To increase the detection probability of sensing users for licenced users (primary signals) in
the cognitive radio , it put s forward a new primary users signal method based on cyclic spect rum statis2
tics. By using discrete f requency smoothing of cyclic spect rum , this algorithm establishes the reason2
able detection statistics on the cyclic f requency of signal cyclic spect rum , then solves and obtains the
decision threshold correspond to different false alarm probability , as a result , making the sensing users
can detect licenced users signal under lower signal in noise ratio (SNR) . Platform: |
Size: 486400 |
Author:刘德龙 |
Hits:
Description: 本程序给出了认知无线电中的能量检测方法，并实现了在不同的虚警概率下的检测性能比较。-This procedure gives the method of energy detection of cognitive radio , and the comparison of detection performance at different false alarm probability . Platform: |
Size: 1024 |
Author:张欢欢 |
Hits:
Description: Matlab能量检测在rayleigh衰落信道下的性能仿真,主要为虚警概率和误警概率的关系-Matlab energy detection in rayleigh fading channel the performance simulation, mainly for the false alarm probability and the relationship between the probability of false alarm Platform: |
Size: 5120 |
Author: 苗苗 |
Hits:
Description: matlab环境下单个节点能量感知的检测概率与虚警概率-energy of a single node under matlab perceived probability of detection and false alarm probability Platform: |
Size: 7168 |
Author:何智锋 |
Hits:
Description: A novel constant false alarm rate(CFAR)detection algorithm is proposed in this paper．The
Biparameter CFAR detection is applicable tO Gaussian noise in non—coherent integration for radar dim target
detection algorithm．The paper analyzed the probability of false alarm in theory．Monte—Carlo simulations
demonstrate that the Biparameter CFAR processor has achieved about 5 dB SNR gains in detection performances
comparable to the conventional cell—averaging CFAR processor． Platform: |
Size: 210944 |
Author:hagood |
Hits:
Description: 利用正弦信号作为发射信号，分别在AWGN和瑞利信道中，计算CR中的检测概率和虚警概率，并绘图。-Sinusoidal signal as transmitted signal, respectively, in AWGN and Rayleigh channel, calculate the probability of detection and false alarm probability of CR and drawing. Platform: |
Size: 2048 |
Author:xinxing |
Hits:
Description: 认知无线电中的加权协作频谱检测算法，用matlab仿真，获得算法的检测概率和虚警概率。-Weighted cooperative cognitive radio spectrum detection algorithm, using matlab simulation, obtain the probability of detection and false alarm probability algorithm. Platform: |
Size: 36864 |
Author:wanghailian |
Hits:
Description: The receiver performance is quantified by depicting the receiver operating char- acteristics (ROC) curves. This curves serve as a tool to and study the performance of a sensing scheme. ROC graphs are employed to show trade-of vs between detection probability and false alarm rates, (i.e. PD versus PFA), thus allowing the determination of an optimal threshold. To illustrate the performance of energy detectors, we generate complementary ROC curves (the average probability of miss detection $ P_{md} 1 - P_d$ versus the false alarm probability $P_f$ for different receiver structures and in different fading environments.Fig. 1 illustrates the complementary ROC curves for a single channel reception (no diversity) over AWGN channels. This figure depicts the complementary ROC curves for energy detectors.
-The receiver performance is quantified by depicting the receiver operating char- acteristics (ROC) curves. This curves serve as a tool to and study the performance of a sensing scheme. ROC graphs are employed to show trade-of vs between detection probability and false alarm rates, (i.e. PD versus PFA), thus allowing the determination of an optimal threshold. To illustrate the performance of energy detectors, we generate complementary ROC curves (the average probability of miss detection $ P_{md} 1 - P_d$ versus the false alarm probability $P_f$ for different receiver structures and in different fading environments.Fig. 1 illustrates the complementary ROC curves for a single channel reception (no diversity) over AWGN channels. This figure depicts the complementary ROC curves for energy detectors.
Platform: |
Size: 1024 |
Author:sagar |
Hits:
Description: These are the code for energy detection.these code also describe about threshold,probability of detection,probability of false alarm,etc-These are the code for energy detection.these code also describe about threshold,probability of detection,probability of false alarm,etc... Platform: |
Size: 4096 |
Author:Maliha Islam |
Hits:
Description: 雷达基础知识，主要有脉冲压缩，型心算法，检测概率和虚警率等方面的仿真-Radar basics, there are pulse compression, core simulation algorithms, probability of detection and false alarm rate and other aspects of Platform: |
Size: 2048 |
Author:李梦奇 |
Hits:
Description: 认知无线电合作感知，合作下的检测和虚警概率关系以及最有门限选择-Cognitive radio cooperative sensing, detection and false alarm probability relations and cooperation under the most threshold selection Platform: |
Size: 267264 |
Author:ruan |
Hits:
Description: 认知无线中的能量检测，仿真了高斯信道和瑞利信道的检测概率、虚警概率与判决门限的关系曲线以及两者之间的关系曲线-The detection probability, false alarm probability and the decision threshold of the Gauss channel and the Rayleigh channel are simulated by the energy detection in cognitive radio. Platform: |
Size: 123904 |
Author:xinxing |
Hits:
Description: 蒙特卡罗ROC曲线的绘制，包括检测概率，虚警概率等(Monte Carlo ROC curve drawing, including detection probability, false alarm probability and so on) Platform: |
Size: 1024 |
Author:猪猪12321
|
Hits:
Search - probability detection probability false alarm