Biometric Identifies You in a Heartbeat
生物特征可以识别出你的心跳
Smartphones can already verify your identity by scanning your fingerprint or your face. But there’s something inside you ，that’s also unique proof that you’re you.
智能手机可以扫描你的指纹或脸来验证你的身份，但是在你心里，是你的特点证明了你是你。
Researchers have developed a device that uses low-powered Doppler radarto decode the unique geometry of a user's heart…and how it squeezes and swells as it beats. That biometric information can authenticate the identity of the person under scrutiny.
研究人员开发了一种设备，此款设备可以利用低功率的多普勒雷达技术，来解码用户心脏的独特几何形状，以及当心脏跳动时，是如何挤压和膨胀的。
这种生物特征信号可以确认人的身份。
And if the wrong person sits down: "It would recognize that there is a heart, but the geometry of my heart is different from yours so it would still log me out." Wenyao Xu is a computer scientist at the University at Buffalo who helped develop the tech.
如果错误的人坐下后，“设备可以识别到他有一个心脏，但是所检测的心脏形状和你的是不同的。
所以，我还是无法登陆系统。
”布法罗大学的计算机科学家Wenyao Xu，帮助研发了此设备。
He says this unusual biometric is robust, because it's actually two different biometrics. The first is the shape of your heart—a 'biologic' biometric or static trait, like fingerprints or iris patterns. The second is the beating of your heart: what's called a 'behavioral' biometric—which analyzes a dynamic process, and can be harder to spoof.
他说，这种非凡的生物特征是非常强大的，因为这实际上是两种不同的生物特征信息。
第一个是心脏形状——例如指纹或者虹膜类型等生物特征或者静态信息。
第二个是你心脏跳动节奏：也称为行为识别特征——主要分析的是动态过程，并且很难作假。
So far they've tested the system on about 100 people—with an accuracy of over 98 percent. They'll present the results this month at the MobiCom conference in Utah.
目前为止，他们已经利用该系统测试了约100人——准确度超过98%。
并将在犹他州的MobiCom会议上展示此成果。
Xu says the radiation from the device isn't harmful—just a fraction of that we get from our smartphones. But at a couple inches in size, the unit’s not quite ready to fit inside a smartphone. "Uh, not yet. So we're waiting for the call from Apple." Because ya gotta have heart. But you also gotta have funding.
Xu表示，此设备无辐射危害——其发出的辐射量只占我们智能手机的一点点。
但是尽管其尺寸不大，但尚不能安装到智能手机中。
“还没应用到手机呢，我们在等着苹果公司的电话。
”因为人人都有心脏，但也得有钱啊~。