-
公开(公告)号：KR101566622B1
公开(公告)日：2015-11-06
申请号：KR1020140076666
申请日：2014-06-23
Applicant: 재단법인대구경북과학기술원
CPC classification number: G01S7/03 , G01S7/282 , G01S7/292 , G01S13/04 , G01S13/06 , G01S13/34 , G01S13/66
Abstract: 통신기능을포함하는레이더장치및 레이더장치의신호처리방법이개시된다. 레이더신호처리장치는레이더모드또는통신모드에따라송신레이더신호또는송신통신신호를송신안테나를통해출력하는송신장치; 복수의수신안테나를통해송신레이더신호가타겟에반사된수신레이더신호, 또는수신통신신호를수신하는수신장치; 및상기수신레이더신호또는수신통신신호를처리하는신호처리장치를포함하고, 상기수신장치는레이더모드를통신모드로스위칭하거나, 통신모드를레이더모드로스위칭하는경우, 상기수신레이더신호또는수신통신신호와믹싱할신호를스위칭할수 있다.
Abstract translation: 公开了一种包括通信功能的雷达装置及其信号处理方法。 雷达信号处理装置包括根据雷达模式或通信模式通过发送天线输出发送雷达信号或发送通信信号的发送装置; 通过接收天线或接收通信信号接收作为目标上反射的发射雷达信号的接收信号的接收模式，以及处理接收雷达信号或接收通信信号的信号处理装置。 接收装置将雷达模式切换为通信模式，或者如果通信模式切换到雷达模式，则可以切换要与接收雷达信号或接收通信信号混合的信号。
-
公开(公告)号：KR1020150042348A
公开(公告)日：2015-04-21
申请号：KR1020130120634
申请日：2013-10-10
Applicant: 재단법인대구경북과학기술원
Abstract: 본발명은무선센서네트워크에서 TOA(time of arrival)를이용한무선측위장치및 그방법에관한것이다. 본발명에따른무선측위장치는노드간에교환되는신호를수신하는신호수신부; 상기수신된신호를처리하여자기상관행렬을연산하는행렬연산부; 상기연산된자기상관행렬을고유벡터(eigenvector) 형태로변환하고행렬의놈(norm) 연산을이용하여가상스펙트럼을검출하는스펙트럼검출부; 및상기검출된가상스펙트럼의피크및 인덱스를검출하여 TOA 를예측하는 TOA 출력부를포함한다. 이와같이본 발명에따르면, 비동기 TWR 시스템의고성능의해상도를실현할수 있는알고리즘에의해 TOA를예측할수 있다. 또한, 본발명에따르면행렬의분해가불필요하여낮은복잡도의 TOA 예측알고리즘을구현할수 있다.
Abstract translation: 无线传感器网络中使用TOA（到达时间）的无线定位装置技术领域本发明涉及使用无线传感器网络中的TOA（到达时间）的无线定位装置及其方法。 无线定位装置包括：信号接收器，接收在节点之间交换的信号; 矩阵运算符通过处理上述信号来计算自相关矩阵; 频谱检测部分，通过使用范数算术来检测虚拟频谱，并将自相关矩阵转换为特征向量格式; 以及TOA输出单元，通过提取检测到的虚拟频谱的峰值和索引来估计TOA。 根据本发明，可以通过实现异步TWR系统的高清晰度图像的算法来预测TOA。 此外，本发明可以实现具有低复杂度的TOA预测算法，不需要基质的溶解。
-
公开(公告)号：KR101449869B1
公开(公告)日：2014-10-13
申请号：KR1020130120632
申请日：2013-10-10
Applicant: 재단법인대구경북과학기술원
Abstract: The present invention relates to a frequency estimating device of a radar signal and a method thereof. The frequency estimating device of the radar signal according to the present invention comprises; a step of repeating a radar transmission signal of the pulse type of N having a PRI interval M times per frame and discharging it to one or more targets and receiving a radar receiving signal; a step of sampling the radar receiving signal; a step of estimating a pulse in which a transformed value becomes a maximum value as an integer unit by Fourier-transforming the sampled radar receiving signal; an obtaining a power value of the radar receiving signal per frame; a step of obtaining a decimal unit using a Fourier transformation value of the radar receiving signal and estimating the decimal unit by Fourier-transforming an obtained decimal unit value repeatedly; a step of measuring a final decimal unit using the estimated decimal unit and the power value; and a step of obtaining an estimating frequency of the radar receiving signal using the integer unit and the final decimal unit. According to the present invention as above, a Doppler frequency can be estimated accurately under a low SNR condition by estimating a weighted average Doppler frequency. Especially, the present invention has an excellent performance in comparison with a frequency estimating method according to a traditional technology because a signal received in an excellent SNR has a high weighted value.
Abstract translation: 本发明涉及雷达信号的频率估计装置及其方法。 根据本发明的雷达信号的频率估计装置包括： 重复每帧具有PRI间隔M次的脉冲类型的雷达传输信号的步骤，并将其放电到一个或多个目标并接收雷达接收信号; 对雷达接收信号进行采样的步骤; 通过对取样的雷达接收信号进行傅立叶变换来估计变换值变为最大值的脉冲作为整数单位的步骤; 获得每帧雷达接收信号的功率值; 使用雷达接收信号的傅立叶变换值获得十进制单位，并通过对所获得的十进制单位值进行反复傅立叶变换来估计小数单位的步骤; 使用估计的小数单位和功率值来测量最终小数单位的步骤; 以及使用整数单位和最终十进制单位来获得雷达接收信号的估计频率的步骤。 根据如上所述的本发明，通过估计加权平均多普勒频率，可以在低SNR条件下准确地估计多普勒频率。 特别地，本发明与根据传统技术的频率估计方法相比具有优异的性能，因为以良好SNR接收的信号具有高加权值。
-
公开(公告)号：KR101360572B1
公开(公告)日：2014-02-11
申请号：KR1020120105744
申请日：2012-09-24
Applicant: 재단법인대구경북과학기술원
IPC: G01S13/34
Abstract: The present invention relates to a method and an apparatus for detecting multi targets of an FMCW radar. According to the present invention, in a method for detecting multi targets of an FMCW radar using a multi target detecting apparatus of the FMCW radar, provided are a method for detecting multi targets of an FMCW radar including the steps of: transmitting a transmission signal including a first and a second triangular wave signal with different periods to a plurality of targets and acquiring a receiving signal reflected from the target; acquiring an up bit frequency and a down bit frequency from the difference between the transmission signal and the receiving signal according to the triangular wave signal; acquiring a first crossover coordinate by mapping the first up bit frequency and the first down bit frequency corresponding to the first triangular wave signal to a distance-speed diagram; acquiring a second crossover coordinate by mapping a second up bit frequency and a second down bit frequency corresponding to the second triangular wave signal to the distance-speed diagram; and extracting a distance and a speed of the target from a synthesis coordinate calculated by using the first crossover coordinate and the second crossover coordinate. According to the method and the apparatus for detecting multi targets of the FMCW radar, detection efficiency and accuracy of multi targets can be increased by using a method of combining the detection result obtained as to two triangular wave signals with different periods over two steps, and generation of a ghost target can be minimized.
Abstract translation: 本发明涉及一种用于检测FMCW雷达多目标的方法和装置。 根据本发明，在使用FMCW雷达的多目标检测装置的FMCW雷达的多目标检测方法中，提供了一种用于检测FMCW雷达的多目标的方法，包括以下步骤：发送包括 具有与多个目标不同周期的第一和第二三角波信号，并获取从所述目标反射的接收信号; 根据三角波信号从发送信号和接收信号之间的差中获取上位频率和下位频率; 通过将对应于第一三角波信号的第一上位比特频率和第一下位频率映射到距离速度图来获取第一交叉坐标; 通过将对应于所述第二三角波信号的第二上位频率和第二下位频率映射到所述距离速度图来获取第二交叉坐标; 以及从通过使用第一交叉坐标和第二交叉坐标计算的合成坐标提取目标的距离和速度。 根据用于检测FMCW雷达多目标的方法和装置，可以通过使用将两个三角波信号获得的检测结果在两个步骤中以不同周期组合的方法来提高多目标的检测效率和精度，并且 鬼目标的生成可以最小化。
-
公开(公告)号：KR101312420B1
公开(公告)日：2013-09-27
申请号：KR1020120034015
申请日：2012-04-02
Applicant: 재단법인대구경북과학기술원
IPC: G01S13/34
Abstract: PURPOSE: A target decision device using radar and a method thereof are provided to accurately determine multiple targets. CONSTITUTION: A target decision device (100) using radar comprises a bit signal generator (110), a bit frequency extractor (120), and a determining unit (140). The bit signal generator produces a bit signal using a radar transmission signal and a radar reception signal for one or more targets. The bit frequency extractor extracts up-bit frequency and down-bit frequency from the produced bit signal. A power spectral density calculation unit calculates power spectrum density in every predetermined frequency cell sections for the extracted up-bit frequency and down-bit frequency. The determining unit determines whether the target is the same target or not using the similarity between power spectrum densities of the up-bit frequency and the down-bit frequency. A target position calculation unit calculates the position of the target in a frequency cell section in which the similarity between power spectrum densities of the up-bit frequency and the down-bit frequency is higher than a reference similarity value. [Reference numerals] (110) Bit signal generator; (120) Bit frequency extractor; (130) Electricity spectrum density calculator; (140) Determining unit; (AA) Radar signal
Abstract translation: 目的：提供使用雷达的目标决策装置及其方法，以准确确定多个目标。 构成：使用雷达的目标决定装置（100）包括比特信号发生器（110），比特频率提取器（120）和确定单元（140）。 位信号发生器使用雷达传输信号和用于一个或多个目标的雷达接收信号产生位信号。 比特频率提取器从产生的比特信号中提取上位频率和下位频率。 功率谱密度计算单元计算提取的上位频率和下位频率的每个预定频率小区部分的功率谱密度。 确定单元使用上位频率和下位频率的功率谱密度之间的相似度来确定目标是否是相同的目标。 目标位置计算单元计算上位频率和下位频率的功率谱密度之间的相似度高于参考相似度值的频率单元部分中的目标的位置。 （附图标记）（110）位信号发生器; （120）位频提取器; （130）电力频谱密度计算器; （140）确定单位; （AA）雷达信号
-
Patent Agency Ranking
公开(公告)号：KR101308831B1
公开(公告)日：2013-09-13
申请号：KR1020110094474
申请日：2011-09-20
Applicant: 재단법인대구경북과학기술원
IPC: G01S13/53 , G01S13/93 , B60W30/08 , B60R21/013
Abstract: 탐지 대상의 속도 정밀도를 향상시키는 펄스 도플러 레이더 수신기 및 방법을 개시한다.
일 실시예로서, 펄스 도플러 레이더 수신기 및 방법은, 탐지 대상의 거리 및 속도를 측정하는데 있어 필요한 계산량을 줄이고 메모리를 효율적으로 적용할 수 있어 펄스 레이더를 낮은 복잡도로 구현하는데 크게 이바지할 수 있고, 펄스 레이더를 효율적으로 구현하여 펄스 레이더 기반의 다양한 차량 응용, 조선 응용, 로봇 응용 그리고 보안 응용에 적용될 수 있다.-
公开(公告)号：KR101212127B1
公开(公告)日：2012-12-13
申请号：KR1020100106129
申请日：2010-10-28
Applicant: 재단법인대구경북과학기술원
IPC: G06T7/00
Abstract: 장애물체검출장치는시차맵(depth map)과카메라정보를기초로, 장애물체의위치를계산하고, 장애물체의위치를평면상에표시하여장애물체에대한조감도를생성하는조감도매핑부, 조감도에대하여행 별로그룹핑하는그룹핑부, 및조감도에대하여각 그룹별로시차맵히스토그램을생성하고, 히스토그램상에서피크(peak)와밸리(valley)를검출하며, 피크와밸리를이용하여각 그룹별로장애물체의영역을검출하는클러스터링부를포함한다.
-
公开(公告)号：KR1020120065558A
公开(公告)日：2012-06-21
申请号：KR1020100126756
申请日：2010-12-13
Applicant: 재단법인대구경북과학기술원
CPC classification number: B60W30/08 , B60W50/06 , B60W2420/42 , G06T7/13 , G06T7/168
Abstract: PURPOSE: A detection method of a vehicle on road is provided to increase the accuracy of detection by limiting the power of true-false which is a weakness of algorism for detecting vehicles in existing image field, and to reduce time for treating comparison with case detecting whole images. CONSTITUTION: A detection method of a vehicle on road comprises: a step of inputting image by photographing a front side or a back side of a vehicle through at least one camera installed in a detecting vehicle; a step of detecting vanishing point on road by using image-treating algorism of the input images; a step of setting the region of interest(ROI) based on the vanishing point; and a step of detecting vehicles by image-treating the region of interest.
Abstract translation: 目的：提供道路上车辆的检测方法，通过限制现有图像区域中检测车辆的算法弱点的真伪功能，提高检测精度，减少与病例检测比较的时间 整个图像。 构成：道路上的车辆的检测方法包括：通过安装在检测车辆中的至少一个照相机拍摄车辆的前侧或后侧来输入图像的步骤; 通过使用输入图像的图像处理算法来检测道路上的消失点的步骤; 基于消失点设置感兴趣区域（ROI）的步骤; 以及通过对感兴趣区域进行图像处理来检测车辆的步骤。
-
公开(公告)号：KR1020120044693A
公开(公告)日：2012-05-08
申请号：KR1020100106129
申请日：2010-10-28
Applicant: 재단법인대구경북과학기술원
IPC: G06T7/00
CPC classification number: G06K9/3241 , G06T7/44 , G06T7/70
Abstract: PURPOSE: A failure object detection apparatus and a method thereof are provided to generate aerial view mapping of an object and to perform aerial view mapping through grouping and clustering. CONSTITUTION: An aerial view mapping unit(210) displays a location of a failure object on a plane. A grouping unit(220) groups the aerial view map according to each row. A clustering unit(230) generates a depth map histogram according to each group. The clustering unit detects a peak and a valley on the histogram. The clustering unit detects the failure object area according to each group.
Abstract translation: 目的：提供一种故障对象检测装置及其方法，用于生成对象的鸟瞰图映射，并通过分组和聚类进行空中视图映射。 构成：空中视图映射单元（210）在平面上显示故障对象的位置。 分组单元（220）根据每行分组鸟瞰图。 聚类单元（230）根据每个组生成深度图直方图。 聚类单元检测直方图上的峰和谷。 聚类单元根据每个组检测故障对象区域。
-
公开(公告)号：KR1020120043209A
公开(公告)日：2012-05-04
申请号：KR1020100104386
申请日：2010-10-26
Applicant: 재단법인대구경북과학기술원
IPC: G06T1/20
CPC classification number: G06T1/20 , G06K9/6202 , G06T2207/20021
Abstract: PURPOSE: A method and an apparatus for performing an image pixel operation are provided to process the summation of mask area pixels through a summation-table operation method based on an integral image. CONSTITUTION: An apparatus receives an input image(S210). The apparatus partitions the input image into a plurality of segmented windows(S230). The apparatus determines a segmented window computation mode based on an inclusion relation of the partial window(S250). The apparatus performs final integral image computation(S270). The apparatus stores an integral image in four buffers(S290).
Abstract translation: 目的：提供一种用于执行图像像素操作的方法和装置，以通过基于积分图像的求和表操作方法来处理掩模区域像素的求和。 构成：装置接收输入图像（S210）。 该装置将输入图像分割成多个分段窗口（S230）。 该装置基于部分窗口的包含关系确定分段窗口计算模式（S250）。 该装置执行最终的积分图像计算（S270）。 该装置将积分图像存储在四个缓冲器中（S290）。
-
-
-
-
-
-
-
-
-
Search Results
187
records
(took 0.026 seconds)
