通过子孔径方法，可以有效降低数据率及雷达发射峰值功率，并可解决多普勒中心频率的时变问题。
With the subaperture method, data rate and radar transmit peak power can be effectively reduced, the time variant of Doppler center frequency can be resolved.
通过更合理的时隙分配以及对每个节点发射功率的控制，使得整个无线传感器网络的能耗降低，寿命延长。
Through reasonable time slot assignment and transmitting power control of each sensor node, for wireless sensor networks, the energy consumption is decreased and the lifetime is enlarged.
理论分析证明，虚拟小区可以降低用户发射功率，从而减少多用户干扰，提高系统容量。
The results show DVCN can reduce users' transmit power, decrease multi-user interference and improve the reverse link capacity.
结果表明，在接收天线数目多于发射天线数目的情况下，该文提出的功率平衡方法可以有效降低多天线系统接收端的BER值。
Simulation results indicate that power balancing can decrease BER at receiver when the number of receiver antennas is greater than that of transmitter.
应用扩频技术，可以大大降低对发射功率的要求，实现海上的高精度导航定位。
Adopting spread spectrum technique, it can reduce emission power and achieve high precision location offshore.
数字的传输系统需要的发射功率可以很小，这将有利于节约能源和降低电磁的污染，能保护与改善环境。
Digital transmission system transmitting power needed can be very small, which will help save energy and reduce the electromagnetic pollution, to protect and improve the environment.
基于子载波边际效用，提出了一种针对实时业务的资源优化分配算法，在满足其传输速率和误比特率的前提下，有效地降低了系统所需要的发射功率。
After that, a resource optimization method for real-time traffics is proposed, which minimizes the required transmit power while guaranteeing the QoS requirement of real-time traffics.
控制所述发射信号通路中的各种元件的增益，以降低输出发射功率中的瞬变，并还确保所述瞬变是向下的。
The gains of the various elements in the transmit signal path are controlled to reduce transients in the output transmit power, and to also ensure that transients are downward.
近年来，由于半导体功率器件工艺的进步和成本的降低，微波固态发射机越来越多地为各类微波系统所采用。
Recently, duce to the improvements of semiconductor power device technology's and dropping of costs, more and more solid state transmitters have been adopted by various microwave systems.
为降低信号的发射功率的问题，采用了采用空前缀的方法降低系统的发射功率。
To reduce the transmitted signal power of MB-OFDM, the null pre-fix is used.
在无线通信中，还可大大降低发射机和接收机的功率。
Moreover, it helps to reduce the power of transmitter and receivers in wireless communication.
对于超声诊断设备而言，发射电压峰值功率已经达到安全极限，在不降低成像质量情况下降低仪器发射电压十分有必要。
Medical equipment is moving along the direction of portable type and low power. As to ultrasonic diagnose equipment, the emission voltage arrives to the limit of safety standards.
对于超声诊断设备而言，发射电压峰值功率已经达到安全极限，在不降低成像质量情况下降低仪器发射电压十分有必要。
Medical equipment is moving along the direction of portable type and low power. As to ultrasonic diagnose equipment, the emission voltage arrives to the limit of safety standards.
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