White paper on SP25 millimeter wave radar Hunan Nanoradar Science and Technology Co.,Ltd.
Version history Date 2016-08-22 Version 1.
Contents White paper on SP25 millimeter wave radar............................................................................................... 1 1 2 3 4 Introduction about mmw radar..............................................................................................................1 1.1 What is mmw radar?...................................................................................................................1 1.2 The development history of mmw radar..............................
White paper on SP25 millimeter wave radar Abstract：SP25 is K-band radar sensor developed by Nanoradar. It has the advantages of being small size, high sensitivity, lightweight, easy to integrate, cost efficient and stable performances. And it has the function of range-measurement and collision avoidance. Now it is widely applied in the UAVs, industrial machinery, intelligent lighting, robots, hydrologic monitoring and railway vehicle safety etc.
2.1 Product features SP25 is a lightweight and compact radar sensor in the same industry, which utilizes radar wave to efficiently measure the distance and velocity of targets. It has the lowest power consumption(0.5W) in the same industry, the smallest volume(40mm*31mm*6mm), a distance-measurement of 30m and the advantages of advanced performances, high cost efficient and integrated peripheral interfaces.
Table 1 SP25 specifications PARAMETER CONDITIONS MIN TYP MAX UNITS 24.20 GHz System characteristics Transmit frequency 24.00 Output power（EIRP） 12 Modulation type dBm FMCW Update rate 50 Hz Range-measurement & velocity -measurement Range-measurement range @0 dBsm Velocity-measurement range 0.1 30 m -70 70 m/s Range-measurement accuracy ±0.1 m Velocity-measurement accuracy 1.2 m/s No. of simultaneously tracked targets 1 pcs Distance resolution 0.
3 Typical application examples 3.1 Automatic collision avoidance for UAVs In recent years, with the increasing demand of UAV market, a large number of unmanned aerial vehicles encountered flying obstacles in the air, resulting in the occurrence of flight difficulties, as shown in Figure 3. Thus collision avoidance has been one of the key challenges in restricting the development of unmanned aerial vehicles. Millimeter-wave radar can detect five times as far as that of ultrasonic.
Figure 4 SP25 application in UAV collision avoidance The advantages of SP25 in UAV collision avoidance: 1. Low cost and low power consumption; 2. Small size and light weight; 3. Accurate and stable detection of obstacles; 4. Long distance measurement and strong anti-interference ability. 3.
In order to solve the problem of street lamp control system, SP25 millimeter wave radar is used as the intelligent sensing module, and the radar sensor detects whether there are pedestrians and vehicles passing through the road to give the lighting strategy to realize the intelligent control of the street lamp. Figure 5 Urban intelligent lighting system A radar sensor could provide the distance and velocity of targets for 3 to 5 lights.
Figure 6 The application of SP25 in intelligent lighting field 4 Conclusion SP25 is a cost-effective millimeter-wave radar sensor aiming at collision avoidance in short range. It can meets the rapidly growing demands of industrial control, unmanned aerial vehicles, smart lighting, security, sports and related fields. Different from our well-known short-range infrared sensors, it utilized a low-power electromagnetic wave for the detection of targets; therefore it is completely harmless to the human body.
FCC Caution： This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
