选型手册:8-12GHz 17W 两级 GaN 大功率放大器—CHA8312-99F

CHA8312-99F

        CHA8312-99F 以其卓越的性能、稳定的品质和广泛的应用,赢得了众多用户的赞誉。它就像一位德高望重的艺术家,用自己的才华和努力,为世界带来精彩和美好。

工作频率: 8-12 GHz
线性增益: 26 dB
输出功率: 42.5 dBm (Pin = 23 dBm)
PAE: 50% (Pin = 23 dBm)
静态电流: 320 mA
漏极电压: 20 V
栅极电压: -2.94 V


CHA6710-99F
CHA6710-FAB
CHA5115-QDG
CHA5115-99F
CHA6005-QEG
CHA6005-99F
CHA6105-99F
CHA8710-QDB
CHA8212-99F
CHA8710a99F
CHA8611-99F
CHA5014-99F
CHA7215-99F
CHA7115-99F
CHA7114-99F
CHA8610-99F

一种基于有效视角点方法的相机位姿估计MATLAB实现方案 该算法通过建立三维空间点与二维图像点之间的几何对应关系,实现相机外部参数的精确求解。其核心原理在于将三维控制点表示为四个虚拟基点的加权组合,从而将非线性优化问题转化为线性方程组的求解过程。 具体实现步骤包含以下关键环节:首先对输入的三维世界坐标点进行归一化预处理,以提升数值计算的稳定性。随后构建包含四个虚拟基点的参考坐标系,并通过奇异值分解确定各三维点在该基坐标系下的齐次坐标表示。接下来建立二维图像点与三维基坐标之间的投影方程,形成线性约束系统。通过求解该线性系统获得虚拟基点在相机坐标系下的初步坐标估计。 在获得基础解后,需执行高斯-牛顿迭代优化以进一步提高估计精度。该过程通过最小化重投影误差来优化相机旋转矩阵和平移向量。最终输出包含完整的相机外参矩阵,其中旋转部分采用正交化处理确保满足旋转矩阵的约束条件。 该实现方案特别注重数值稳定性处理,包括适当的坐标缩放、矩阵条件数检测以及迭代收敛判断机制。算法能够有效处理噪声干扰下的位姿估计问题,为计算机视觉中的三维重建、目标跟踪等应用提供可靠的技术基础。 资源来源于网络分享,仅用于学习交流使用,请勿用于商业,如有侵权请联系我删除!
===== TEST FINISHED OK ===== [dragon@localhost ova_temp]$ export LIBGUESTFS_BACKEND=direct [dragon@localhost ova_temp]$ export LIBGUESTFS_DEBUG=1 [dragon@localhost ova_temp]$ sudo -E virt-v2v -i disk win2003-disk1.vmdk -o local -os ~/vms/win2003/ libguestfs: create: flags = 0, handle = 0x5628d0bb1710, program = virt-v2v libguestfs: create: flags = 0, handle = 0x5628d0bb1da0, program = virt-v2v [ 0.0] Opening the source -i disk win2003-disk1.vmdk libguestfs: create: flags = 0, handle = 0x5628d0bb43f0, program = virt-v2v libguestfs: command: run: qemu-img --help | grep -sqE -- '\binfo\b.*-U\b' libguestfs: command: run: qemu-img libguestfs: command: run: \ info libguestfs: command: run: \ -U libguestfs: command: run: \ --output json libguestfs: command: run: \ ./win2003-disk1.vmdk libguestfs: parse_json: qemu-img info JSON output:\n{\n "virtual-size": 42949672960,\n "filename": "./win2003-disk1.vmdk",\n "cluster-size": 65536,\n "format": "vmdk",\n "actual-size": 2682425344,\n "format-specific": {\n "type": "vmdk",\n "data": {\n "cid": 2370822867,\n "parent-cid": 4294967295,\n "create-type": "streamOptimized",\n "extents": [\n {\n "compressed": true,\n "virtual-size": 42949672960,\n "filename": "./win2003-disk1.vmdk",\n "cluster-size": 65536,\n "format": ""\n }\n ]\n }\n },\n "dirty-flag": false\n}\n\n [ 0.0] Creating an overlay to protect the source from being modified libguestfs: create: flags = 0, handle = 0x5628d0bb5ab0, program = virt-v2v libguestfs: command: run: qemu-img --help | grep -sqE -- '\binfo\b.*-U\b' libguestfs: command: run: qemu-img libguestfs: command: run: \ info libguestfs: command: run: \ -U libguestfs: command: run: \ --output json libguestfs: command: run: \ /var/tmp/v2vovl4d77de.qcow2 libguestfs: parse_json: qemu-img info JSON output:\n{\n "backing-filename-format": "vmdk",\n "virtual-size": 42949672960,\n "filename": "/var/tmp/v2vovl4d77de.qcow2",\n "cluster-size": 65536,\n "format": "qcow2",\n "actual-size": 200704,\n "format-specific": {\n "type": "qcow2",\n "data": {\n "compat": "1.1",\n "lazy-refcounts": false,\n "refcount-bits": 16,\n "corrupt": false\n }\n },\n "full-backing-filename": "/home/dragon/ova_temp/win2003-disk1.vmdk",\n "backing-filename": "/home/dragon/ova_temp/win2003-disk1.vmdk",\n "dirty-flag": false\n}\n\n libguestfs: create: flags = 0, handle = 0x5628d0bb72d0, program = virt-v2v libguestfs: command: run: qemu-img --help | grep -sqE -- '\binfo\b.*-U\b' libguestfs: command: run: qemu-img libguestfs: command: run: \ info libguestfs: command: run: \ -U libguestfs: command: run: \ --output json libguestfs: command: run: \ /var/tmp/v2vovl4d77de.qcow2 libguestfs: parse_json: qemu-img info JSON output:\n{\n "backing-filename-format": "vmdk",\n "virtual-size": 42949672960,\n "filename": "/var/tmp/v2vovl4d77de.qcow2",\n "cluster-size": 65536,\n "format": "qcow2",\n "actual-size": 200704,\n "format-specific": {\n "type": "qcow2",\n "data": {\n "compat": "1.1",\n "lazy-refcounts": false,\n "refcount-bits": 16,\n "corrupt": false\n }\n },\n "full-backing-filename": "/home/dragon/ova_temp/win2003-disk1.vmdk",\n "backing-filename": "/home/dragon/ova_temp/win2003-disk1.vmdk",\n "dirty-flag": false\n}\n\n [ 0.1] Opening the overlay libguestfs: create: flags = 0, handle = 0x5628d0bb99f0, program = virt-v2v libguestfs: launch: program=virt-v2v libguestfs: launch: identifier=v2v libguestfs: launch: version=1.40.2libvirt libguestfs: launch: backend registered: unix libguestfs: launch: backend registered: uml libguestfs: launch: backend registered: libvirt libguestfs: launch: backend registered: direct libguestfs: launch: backend=direct libguestfs: launch: tmpdir=/tmp/libguestfssJzX3j libguestfs: launch: umask=0022 libguestfs: launch: euid=0 libguestfs: begin building supermin appliance libguestfs: run supermin libguestfs: command: run: /usr/bin/supermin libguestfs: command: run: \ --build libguestfs: command: run: \ --verbose libguestfs: command: run: \ --if-newer libguestfs: command: run: \ --lock /var/tmp/.guestfs-0/lock libguestfs: command: run: \ --copy-kernel libguestfs: command: run: \ -f ext2 libguestfs: command: run: \ --host-cpu x86_64 libguestfs: command: run: \ /usr/lib64/guestfs/supermin.d libguestfs: command: run: \ -o /var/tmp/.guestfs-0/appliance.d supermin: version: 5.1.19 supermin: rpm: detected RPM version 4.15 supermin: package handler: fedora/rpm supermin: acquiring lock on /var/tmp/.guestfs-0/lock supermin: if-newer: output does not need rebuilding libguestfs: finished building supermin appliance libguestfs: begin testing qemu features libguestfs: checking for previously cached test results of /usr/bin/qemu-kvm, in /var/tmp/.guestfs-0 libguestfs: loading previously cached test results libguestfs: qemu version: 4.1 libguestfs: qemu mandatory locking: yes libguestfs: qemu KVM: enabled libguestfs: finished testing qemu features /usr/bin/qemu-kvm \ -global virtio-blk-pci.scsi=off \ -no-user-config \ -enable-fips \ -nodefaults \ -display none \ -machine accel=kvm:tcg \ -cpu host \ -m 2150 \ -no-reboot \ -rtc driftfix=slew \ -no-hpet \ -global kvm-pit.lost_tick_policy=discard \ -kernel /var/tmp/.guestfs-0/appliance.d/kernel \ -initrd /var/tmp/.guestfs-0/appliance.d/initrd \ -object rng-random,filename=/dev/urandom,id=rng0 \ -device virtio-rng-pci,rng=rng0 \ -device virtio-scsi-pci,id=scsi \ -drive file=/var/tmp/v2vovl4d77de.qcow2,cache=unsafe,format=qcow2,copy-on-read=on,discard=unmap,id=hd0,if=none \ -device scsi-hd,drive=hd0 \ -drive file=/var/tmp/.guestfs-0/appliance.d/root,snapshot=on,id=appliance,cache=unsafe,if=none,format=raw \ -device scsi-hd,drive=appliance \ -device virtio-serial-pci \ -serial stdio \ -device sga \ -chardev socket,path=/tmp/libguestfsMJl3al/guestfsd.sock,id=channel0 \ -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \ -netdev user,id=usernet,net=169.254.0.0/16 \ -device virtio-net-pci,netdev=usernet \ -append "panic=1 console=ttyS0 edd=off udevtimeout=6000 udev.event-timeout=6000 no_timer_check printk.time=1 cgroup_disable=memory usbcore.nousb cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=/dev/sdb selinux=0 guestfs_verbose=1 guestfs_network=1 TERM=xterm guestfs_identifier=v2v" qemu-kvm: Parameter 'type' expects a netdev backend type libguestfs: child_cleanup: 0x5628d0bb99f0: child process died libguestfs: sending SIGTERM to process 222751 virt-v2v: error: libguestfs error: guestfs_launch failed, see earlier error messages If reporting bugs, run virt-v2v with debugging enabled and include the complete output: virt-v2v -v -x [...] libguestfs: closing guestfs handle 0x5628d0bb99f0 (state 0) libguestfs: command: run: rm libguestfs: command: run: \ -rf /tmp/libguestfssJzX3j libguestfs: command: run: rm libguestfs: command: run: \ -rf /tmp/libguestfsMJl3al libguestfs: closing guestfs handle 0x5628d0bb72d0 (state 0) libguestfs: closing guestfs handle 0x5628d0bb5ab0 (state 0) libguestfs: closing guestfs handle 0x5628d0bb43f0 (state 0) libguestfs: closing guestfs handle 0x5628d0bb1da0 (state 0) libguestfs: closing guestfs handle 0x5628d0bb1710 (state 0) [dragon@localhost ova_temp]$
11-04
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