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Description: 针对航空照片中自动目标识别的复杂性．该文提出了一种基于神经网络的自动目标识别算法，
算法包括检测和虚警排除两个阶段．检1删阶段是在整幅区域中i挂行快速搜寻．找出所有可能的目标 虚
警排障阶段是对检测阶段得到的结果进行进一步的验证， 在尽可能保留全部真目标的前提下，将伪目标
排除．实验结果证明了算法的可行性．
关键词 神经网络，航空照片， 自动目标识别-against aerial photographs Automatic Target Recognition of complexity. This paper presents a neural network-based automatic target recognition algorithm, the algorithm including the detection and false alarm ruled out in two stages. Frederick stage is a cut in the whole region i linked to fast-track the search. To identify all possible targets false alarm remove obstacles stage of the testing phase results further verification, reservations at all possible real targets on the premise that goal will be to exclude false. Experimental results demonstrate the feasibility of the algorithm. Keywords neural network, aerial photographs, automatic target recognition
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Size: 133911 |
Author: 陈文清 |
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Description: 性能优化的跟踪门算法
一个基于数据关联性能评价的优化跟踪门算法，并通过它来减少跟踪门内来自非本目标的回
波，最终达到提高多目标多传感器跟踪系统性能的目的)与最优跟踪门相比，经理论分析和仿真数据表明，本算法有效
改善了系统的性能，尤其在强干扰、高虚警的情况下更为明显)-Performance Optimization of Tracking Gate Algorithm of a performance evaluation based on the data association Tracking Gate Algorithm optimization, and through it to reduce the tracking of the target sector from non-echo, and ultimately to improve multi-target multi-sensor tracking system for the purpose of performance) and compared to optimal tracking of the door by the theoretical analysis and simulation data show that the algorithm effectively improve the system performance, especially in strong interference, and high false alarm more obvious cases)
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Size: 119808 |
Author: 88txj |
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Description: 对于门限电平的设置，常常用到虚警概率，但是恒虚警是根据电平的变化来设置虚警概率。-Threshold levels for the settings, usually used for false alarm probability, but CFAR is based on changes in level to set the false alarm probability.
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Size: 161792 |
Author: zn |
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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
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Size: 1024 |
Author: 朱阳阳 |
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Description: Compute Classical detection threshold for radar detection under additive Gaussian white noise criterion and specified false alarm probability.
-Compute Classical detection threshold for radar detection under additive Gaussian white noise criterion and specified false alarm probability.
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Size: 1024 |
Author: mid |
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Description: Compute Classical CFAR binary detection threshold for radar detection under additive Gaussian white noise criterion and specified false alarm probability.
-Compute Classical CFAR binary detection threshold for radar detection under additive Gaussian white noise criterion and specified false alarm probability.
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Size: 3072 |
Author: mid |
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Description: 基于SIR粒子滤波器的故障诊断方法，参数有误报率和漏报率-SIR particle filter based on the fault diagnosis methods, parameters and reporting the rate of false alarm rate
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Size: 55296 |
Author: 王军 |
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Description: 衡虚警检测的程序，不敢独享，与大家分享！希望对大家有帮助-Value false alarm detection procedures, not exclusive, to share with you! We want to help
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Size: 1024 |
Author: 蒋继菲 |
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Description: 提供一个cell-weraging constant false alarm rate (CA-CFAR)的算法，基于信号检测的方法。-We present a method for evaluating the performance of
cell-weraging constant false alarm rate (CA-CFAR) processors
which use the anplitude of echo signals rather than their
squared amplitude Results are presented for the case of Rayleigh
clutler/mise statistics for which some sirnulatiom have been
reported recently by other authors [:I. Detection probabilities are
evaluated for the case of a Rayleigh fluctuating target embedded
in Rayleigh clutter/noise for linear-law CA-CFAR processors.
These results are observed to be practically identical to those of
square-law CA-CFAR processors for which analytical expressions
are readily available. We also verify these observations using
Monte Carlo simulations. The same conelusion is reached in the
case of a nonfluctuating target embedded in Rayleigh clutter/noise
for which only simulation results are presented here.
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Size: 348160 |
Author: wang zhuo |
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Description: normalized threshold vs the probability of false
alarm in radar system.
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Size: 1024 |
Author: Akash |
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Description: vhdl source code of fire detection system/fire alarm system especially for high rise building?
This among the requirement :-
according to my "fire detection system for tall building" project by using Spartan 3E FPGA, the vhdl program need to include all of dis specification:-
First of all, we ll put sensor/smoke detector each floor in the tall building.
1) alarm ll activated if the sensor/smoke detector sense a fire
2)at the same time, the actuator will activate in order to control such a elevator and any other machines in the building.
3)the controller will display which floor caught by fire and the sensor/smoke detector initial or current temperature.
4)If there is false alarm, we can stop it by push the reset button .-vhdl source code of fire detection system/fire alarm system especially for high rise building?
This is among the requirement :-
according to my "fire detection system for tall building" project by using Spartan 3E FPGA, the vhdl program need to include all of dis specification:-
First of all, we ll put sensor/smoke detector each floor in the tall building.
1) alarm ll activated if the sensor/smoke detector sense a fire
2)at the same time, the actuator will activate in order to control such a elevator and any other machines in the building.
3)the controller will display which floor caught by fire and the sensor/smoke detector initial or current temperature.
4)If there is false alarm, we can stop it by push the reset button .
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Size: 1024 |
Author: subin |
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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) .
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Size: 486400 |
Author: 刘德龙 |
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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 .
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Size: 1024 |
Author: 张欢欢 |
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Description: spectrum sensing detection and false alarm probability
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Size: 6144 |
Author: Ritesh chanchal |
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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
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Size: 5120 |
Author: 苗苗 |
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Description: 认知无线电频谱感知匹配滤波器检测仿真，选用FM信号，分析了虚警概率-Matched filter spectrum sensing cognitive radio simulation testing, the choice of FM signals, analysis of the probability of false alarm
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Size: 1024 |
Author: 秦楠楠 |
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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
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Size: 7168 |
Author: 何智锋 |
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Description: 火灾作为一种发生频率高、破坏性强的灾害,已受到了人们的大力重视。本文依据传感器检测技术和单片机技术的发展，从人们日趋严重的安全问题出发，设计了适用于居民住房的基于单片机的智能火灾报警系统。该系统采用了感温和感烟探测器相结合的探测方法，能更加准确的报警，从而降低误报率。以AT89S52单片机为控制器，通过温度传感器、烟雾传感器采集现场火灾信号，经信号处理、A/D转换送入单片机，单片机经过数据处理、与设定值比较、判断是否超过报警上限，若未超过，则由数码管显示器显示烟雾浓度和温度；若超过，则由数码管显示的同时实现声光报警，使人们能够及时发现火灾，并采取有效措施，扑灭初期火灾。智能火灾报警系统具有实时监控和报警的功能，是一种结构简单、性能稳定、使用方便、价格低廉、智能化的报警器，具有较好的实用性。-Fire is a kind of high frequency, destructive disasters, which was given a strong attention. In this paper, based on the development of sensor technology and computer technology, starting the security problem that people increasingly serious, smart fire alarm was designed based on single chip microcomputer system.The designed system is suitable for the residents of housing. The system employs a temperature detector and smoke detector to detect fire together they can give a more accurate alarm and reduce the false alarm rate. Using AT89S52 as controller, the temperature sensor and smoke sensor are employed to acquired the fire signal. After the signal was processed and A/D conversion it was in put the SCM. Then the data was processed by the SCM, Comparing with the preset value and determining whether it exceeds the alarm limit or not. In normal condition four 7-segment LEDs shows the smoke concentration and temperature. When it fire, the designed system gives light and sound to alarm p
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Size: 650240 |
Author: 舒糖 |
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Description: probability of false alarm in CR network
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Size: 14336 |
Author: micky |
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Description: probability of false alarm
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Size: 13312 |
Author: nasrallah |
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