Plasma waves are observed around almost all the solar system objects – Sun, planets and their satellites, comets, interplanetary medium, etc. The plasma environment around a planet has sufficient plasma density and temperature to sustain plasma waves. A number of plasma waves are observed in planetary magnetospheres – Mercury, Earth, Jupiter, Saturn, Uranus and Neptune. Venus and Mars do not possess a global magnetic field but have plasma waves around them. Plasma waves play an important role in the dynamics of the plasma environment around a solar system object by controlling the scattering and loss of energetic charged particles. Also, plasma waves provide an important diagnostic tool by revealing various characteristic frequencies of the plasma, from which quantities such as the electron density can be computed. Although Venus and Mars are the nearest neighbors of Earth on its either side, these two planets are not much explored with plasma wave detection instrumentation. Only 4 missions out of 23 missions to Venus and only 3 out of 42 missions to Mars carry plasma wave detection instruments with them. In this review paper, the plasma waves observed so far around Venus and Mars are presented along with the plasma waves that could exist around these two planets but are yet to be observed and an optimized suite of plasma wave instruments for these observations.

几乎所有太阳系物体周围都可以观察到等离子体波——太阳、行星及其卫星、彗星、行星际介质等。行星周围的等离子体环境具有足够的等离子体密度和温度来维持等离子体波。在行星磁层——水星、地球、木星、土星、天王星和海王星——中观察到了许多等离子波。金星和火星没有全球磁场，但周围有等离子波。等离子体波通过控制高能带电粒子的散射和损失，在太阳系物体周围等离子体环境的动力学中发挥着重要作用。此外，等离子体波通过揭示等离子体的各种特征频率提供了一种重要的诊断工具，从中可以计算出诸如电子密度之类的量。尽管金星和火星是地球两侧最近的邻居，但这两个行星并没有用等离子波检测仪器进行过多的探索。23 个金星任务中只有 4 个任务和 42 个火星任务中只有 3 个带有等离子波探测仪器。在这篇评论论文中，迄今为止在金星和火星周围观测到的等离子波与可能存在于这两个行星周围但尚未被观测到的等离子波一起呈现，以及用于这些观测的优化等离子波仪器套件。