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约找到 51 条结果,耗时 0.193 秒
DIY【民科牌】X波段射频信号源
GiroPetrenko
4年2个月前
回复于
无线电
内容:仍然想做
fmcw
。
5.8G FMCW式雷达的低成本实现总结报告 :(
GiroPetrenko
4年2个月前
回复于
无线电
内容:若是国庆有时间,那就把
FMCW
接着继续吧。
填坑篇之FMCW雷达试制(完结)
RodTech
3年11个月前
回复于
无线电
内容:
FMCW
雷达并不需要线性扫频,唯一的要求就是接收机相干,且扫频预知。
分享一个比XXXXXXXXXX更好的在线SDR网站
smith
5年5个月前
回复于
无线电
内容:按照他们工程师的文档编译代码有问题最近倒是有想法用plutosdr做
FMCW
的实验
开大坑:UHF FMCW 二维搜索雷达
zx-16533
5年2个月前
回复于
无线电
内容:如果是有两个接收天线的话,对于单个目标粗略测角可以直接测两个天线接收的相位差,似乎没必要搞这么庞大,参考:XXXXXXXXXXXXXXXXXXX/third-version-of-homemade-6-ghz-
fmcw
XXXXXXXXXml
我也来仿制SDRPLAY【持续更新中】
GiroPetrenko
4年10个月前
发表于
无线电
内容:直接去研究
FMCW
是肯定不行的,知识跟不上。
发一个雷达图纸,DIY的成本不是很高,功率也不大
bg2bhc
11年8个月前
回复于
无线电
内容:有个也是做的L
FMCW
,X波段的头是现成的,用数字逻辑做波形合成,DSP采集加FFT,回传PC显示。
DIY【民科牌】X波段射频信号源
GiroPetrenko
4年2个月前
回复于
无线电
内容:之前
FMCW
使用的LMX2572芯片据说还有BUG,已经不止一位朋友同我探讨扫频模式无输出的问题了。
[重来] 5.8GHz 测距雷达
miles
4年9个月前
回复于
无线电
内容:先老老实实抄一个 XXXXXXXXXXXXXXXXXXXXXX/~s53mv/vnr/XXXXXXXXXml 高度表然后你再考虑做
FMCW
雷达2.4GHz频率有点低,换5.8G会好一点,现成的高增益天线一大把
DIY简易5.8G FMCW雷达
ddomax
5年10个月前
回复于
无线电
内容:通过将多普勒频率接近零的回波成分过滤掉可以去除静止物体:参考作品(XXXXXXXXXXXXXXXXXXX/third-version-of-homemade-6-ghz-
fmcw
XXXXXXXXXml)
DIY 了一个USRP B200
sonicxb
7年10个月前
回复于
无线电
内容:明天我来发点性能测试的图,我这两天用GNU Radio搭了一个
FMCW
的信号生成模块,明天用自制的板子发出来看看。
超声合成孔径成像
zx-16533
6年4个月前
回复于
电子技术
内容:卖家提供的数据是
FMCW
模式距离速度探测 汽车>30米,人>15米 ,垂直对水泥地面>30米Analog Dechirp方式由于将两路chirp信号混频,产生的回波相位除了与距离成线性的多普勒项,还有与距离成二次的,Analog Dechirp方式的成像仿真代码:XXXXXXXXXXXXXXXXXX/gym487/SAR_exp/blob/master/XXXXXXX应该还有更远距离,容易实现的方案?
DIY 了一个USRP B200
sonicxb
7年10个月前
发表于
无线电
内容:后来开始用USRP来玩
FMCW
雷达,一步一步开始用GNU Radio,真的挺方便的。,2)楼主其实一直想搞
FMCW
的低成本民用雷达做SAR成像的。
DIY无人机载C波段(5.8G)合成孔径雷达遥感成像平台
zx-16533
5年3个月前
发表于
无线电
内容:由于前一个帖子中的
FMCW
雷达系统经实际测试输出功率未达到设计值,又额外增加一级功率放大器将输出功率提高到约27dBm(由于暂时缺少能用到6GHz的功率计和频谱仪,此值为理论值)。
Agilent/HP 频谱仪应用手册(新版) 中文版
RodTech
9年4个月前
发表于
仪器仪表
内容:然而有些高端频谱仪如PXA-X系列配备百兆采样的ADC与高浮点运算能力的处理器,采取全数字中频,还可捕捉促发信号,如
FMCW
雷达等。
用于测向训练和比赛的多功能信标发射机KC1050
科创供销
4年11个月前
发表于
会员海报
无线电
内容:右侧设置项目,显示为
FMCW
(自动调频报)、HKEY(人工报)、WIRE(自动等幅报)之一者,为拍发方式设置。
(转发TI文章)集成式RF采样收发器支持快速跳频、多频带和多模式操作
雪馒头
3年9个月前
发表于
无线电
内容:用于每个发送器的内置正弦波音频发生器,都支持生成雷达系统常用的频率斜坡和调频连续波(
FMCW
)。
[转载悬赏翻译] DIY FMCW雷达、MIT开放课程里的SAR合成孔径雷达
昕野
11年9个月前
回复于
无线电
内容:连续波雷达来自维基百科,自由的百科全书(重定向自
FMCW
)跳转到:导航,搜索连续波雷达是一种雷达系统在已知的稳定频率连续波电台能源传输,然后收到反映的任何对象。,[编辑]正弦波频率调制 正弦调频调制标识范围通过测量的频谱分布量产生的传播延迟 (上午不用
FMCW
)。,卡森带宽规则可以看到在这个方程式中,和,非常接近于确定放在接收频谱的蔓延的量: 接收机解调与
FMCW
类似于使用与脉冲压缩的接收机解调策略一起使用。,可以提供额外信号噪音收益,这种人不需要额外的电源,使用没有调频调制的脉冲雷达将压缩
FMCW
匝道。
国土安全:七年之后
mass_lynnxy
16年3个月前
发表于
电子技术
内容:正在考虑用于现场的两种技术是脉冲多普勒雷达和频率调制连续波,或者叫
FMCW
(图1)。,新一代
FMCW
雷达技术是专门开发用于大面积监测、哨卡安全和边境保护。,
FMCW
通过成像原理工作,将背景分成小的部分或分辨率单元,然后测量从每个单元所返回信号的变化,从而侦测小的目标。,现代
FMCW
雷达可以侦测以近乎零速度移动的人员,以及走在相对于雷达任何方向的人,这包括了与雷达方向相切。
国产谐波雷达(非线性结点探测器)TZD95C的拆解参观
虎哥
2年10个月前
发表于
无线电
内容:晚近的设备已经逐渐采用
FMCW
或扫频脉冲以测定目标距离和排除自身干扰。
[转载悬赏翻译] DIY FMCW雷达、MIT开放课程里的SAR合成孔径雷达
昕野
11年9个月前
回复于
无线电
内容:理论 因为您可以在
FMCW
理论从其他地方找到更好引用了很多,我不会去太多在这一章中的详细信息。
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