Increased precision of gun-launched ammunition can reduce collateral damage and increase stand-off distance. It can maximize the tactical advantage of each shot and reduce the number of rounds needed to achieve mission success. Worldwide, technology for controlled smart munitions is being researched and demonstrated in various implementations. Although the use of aerodynamic control fins is an effective control means, such fins are complex to integrate with the projectile, they increase radar reflectivity (with associated risk of counter battery fire) and will reduce payload. The Netherlands Organisation for Applied Scientific Research has been developing a Stagnation Pressure Reaction Control technology without aerodynamic fins, for aerodynamically unstable projectiles. The on-off character of this control technology requires a tuned control algorithm in order to achieve stable and controllable projectile behaviour. This article discusses simulated projectile behaviour under different control algorithms and presents achieved test object performance in a supersonic wind tunnel experiment performed in 2018. The experiment demonstrated feasibility of the combination of the Stagnation Pressure Reaction Control Technology and the tuned control algorithm for a non-spinning, aerodynamically unstable test object, hinged through its centre of mass. In a Mach 2 wind tunnel flow, this test object was stabilized and put under a controlled angle of incidence up to 1.5 degrees with angular error bandwidths up to 0.3 degrees, requiring and realising actuator response times on the order of 2 ms. For higher stable angles of incidence, required for correcting disturbances such as wind gusts, the SPRC technology could be integrated into projectiles with a reduced margin of instability. The short response time would provide such a projectile with a high level of (end game) manoeuvrability, for instance against moving targets.

提高枪支弹药的精度可以减少附带损害并增加对峙距离。它可以最大程度地发挥每次射击的战术优势，并减少获得任务成功所需的回合次数。在全球范围内，正在研究和演示用于受控智能弹药的技术。尽管使用空气动力学控制鳍片是一种有效的控制手段，但这种鳍片很难与弹丸整合，但它们可以提高雷达反射率（伴随着反电池着火的风险），并会减少有效载荷。荷兰应用科学研究组织一直在开发一种不带空气动力学翼片的停滞压力反应控制技术，用于空气动力学不稳定的弹丸。该控制技术的开关特性需要一种调整后的控制算法，以实现稳定且可控的弹丸性能。本文讨论了在不同控制算法下的模拟弹丸行为，并在2018年进行的超音速风洞实验中介绍了已达到的测试对象性能。该实验证明了将滞止压力反应控制技术与调谐控制算法相结合用于非旋转的可行性空气动力学不稳定的测试对象，通过其质心进行铰接。在2马赫的风洞流中，该测试对象被稳定并置于高达1.5度的受控入射角下，且角度误差带宽高达0.3度，要求并实现2 ms量级的执行器响应时间。对于校正诸如阵风之类的干扰所需要的更高的稳定入射角，可以将SPRC技术集成到弹丸中，以减少不稳定的余量。短的响应时间将为此类弹丸提供高水平的（最终游戏）机动性，例如针对移动目标。