In atrial fibrillation surprisingly, the importance of heart rate modulation has not really been proven.
然而，心率调节对房颤的重要性并未得到证实。
Such a rate is easy to achieve, even with old chips, but there is an additional burden when using Class D modulation.
这样的频率即使是用旧的芯片也很容易实现，但是当使用D类调制时会产生额外的负荷。
They also measured cardiac autonomic modulation (CAM), the balance of the sympathetic and the parasympathetic control of the heart rate rhythm.
他们还测量了控制心率节律的交感神经与副交感神经平衡的——心率自主调节(CAM)。
The experiment results justify the high recognition rate with less samples, thus the method can be used in the digital signal modulation recognition system.
实验结果表明，该调制识别方法在小样本下具有较高的识别率，可以应用在数字信号的调制识别系统中。
The numerical simulation also shows that fundamental soliton pulses with high repetition rate can be generated in this kind of fiber by modulation instability.
数值模拟显示，利用色散缓变光纤中的调制不稳定性可以产生高重复率的基本孤子脉冲串。
If the modulation rate is high, it is possible to smooth out the pulse train using passive electronic filters and recover an average analog wave form.
如果调制率高，是有可能顺利进行，脉冲列车使用被动电子过滤器和收回平均模拟波形。
The optimal operating condition of gain switched semiconductor laser with different modulation rate is studied in this paper.
研究了不同调制速率下的增益开关半导体激光器的最佳工作状态。
OFDM (Orthogonal Frequency Division Multiplexing) is a new modulation technology, it is suitable to high-data-rate transmission in the wireless transfer channel with multi-path transmission.
正交频分复用(OFDM)是一种新型调制技术，特别适合在多径传播的无线移动信道中高速传输数据。
Compared with the traditional scheme of single-carrier modulation, OFDM technology has more effective anti-jamming ability and achieves higher transmission rate.
与传统的单载波调制方式相比，OFDM技术可以有效地抵抗信道多径干扰，提高系统的传输速率。
In this paper, an adaptive modulation system controlled by changing the symbol rate and modulation level is proposed.
本文研究了通过改变符号率及调制电平的方法实现的自适应调制系统。
The modulation types of data link for UAV are simple, such as BPSK, 2FSK , direct spread spectrum. The transmitted rate and anti-interference performance of them are limited.
目前，无人机数据链系统采用的调制模式都比较简单，如2FSK、BPSK、直接扩频技术等，传输速率与抗干扰能力有限。
On the other hand, adaptive modulation technique can enhance data rate, spectrum efficiency and transmission reliability in MIMO-OFDM systems.
另一方面，对于MIMO - OFDM系统来说，自适应调制技术可以提高系统的数据传输率、频谱效率以及传输的可靠性。
At the end of the essay we validate the whole system platform with the recognition of modulation and cord rate.
最后通过调制方式及码速率识别算法对系统平台硬件实现进行了验证。
The digital control and signal processing for hydrodynamic modulation voltammetry is proposed. The rotation rate control signal was software generated.
本文报道了流体力学调制伏安法的数字控制和信号处理。
This modulation rate of data transmission is expressed as 12,800 baud (Bd), representing 12,800 bits per second.
这种数据传输调制频率用12800波特(Bd)来表示，指的是每秒钟12800位。
The research contents mainly consist of symbol rate estimation, carrier frequency offset estimation, modulation recognition and blind demodulation.
研究内容主要包括：符号率估计、载波频偏估计、调制方式识别以及盲解调等。
The modulation effect of the bias of rate biased ring laser gyro is analysed. The error which is induced by the bias of rate biased ring laser gyro is analysed through digital simulation.
分析了速率偏频激光陀螺的偏频转台对陀螺漂移的调制效应，通过数字仿真定量分析了速率偏频激光陀螺漂移引起的导航参数误差。
Our simulation results also show that these multi-tone pump phase modulation techniques are more appropriate for the future high bit rate systems.
我们的分析结果还指出这种多重单频正弦波泵浦相位调制技术更加适合于将来的高比特速率系统。
Furthermore, the expression of stationary bit error rate of system output corresponding to equiprobability quaternary pulse amplitude modulation (PAM) input signals was deduced.
给出了当输入信号为等概率的四进制脉冲幅值调制（PAM）时，系统输出理论渐近误码率计算公式。
The data transmission rate will be increased to a large extent due to the advanced modulation in the task. The technique being used in practice will be useful in terms of economic and social aspects.
由于在本课题中采用了新的调制方式，提高了数据传输的速率，在今后的实际应用中，一定会有很好的经济效益和社会效益。
Emulate experiments and lake experiment obtained lower error code rate than traditional waveform design method using this waveform structure with multiple phase shift key modulation.
以多进制相位调制方式采用这种波形结构进行了仿真实验和湖水试验，都获得了比传统的波形结构更低的误码率。
Based on analyzing the two multiple modulation schemes, the expressions of symbol error rate (SER) are presented and the system performances are compared.
在对两种多进制调制方式进行分析的基础上，分别给出了系统误符号率(SER)的表达式并进行了仿真比较。
It is shown that the temporal growth rate of modulation instability is increased significantly in the corona region near the critical surface in laser-produced plasmas.
分析结果表明，激光等离子体的临界面附近的调制不稳定性的时间增长率较激光等离子体中其余位置处更为显著。
It has been proved in reality that a PLCC based on spreading spectrum modulation and demodulation can achieve a higher communicating rate and a lower bit error rate.
实践证明，以扩频调制、解调为基础的电力线载波通信方案可获得较高的通信速率和较低的误码率。
Multimode modulation is a good method to increase the frequency efficiency and to maintain smaller frequency occupancy rate.
其中多进制调制，不仅能够提高频谱利用率，并且能保证较小的频谱占用率。
By simulating the modulation process using MATLAB, the influence of different power spectrum estimation algorithm to the bit-error-rate performance of the demodulation technique is analyzed.
通过Matlab仿真了调制解调过程，分析了三种功率谱估计算法对解调误码性能的影响。
The model supports the multi-rate non-ideal channel using adaptive modulation and coding (AMC), which is the key feature in the wireless networks to increase the effective transmission rate.
该模型支持采用自适应调制和编码(AMC)的多速率非理想信道，而AMC在无线网络中是增加有效传输率的关键技术。
Quantum well laser diodes are of high modulation frequency response. They can be used as light sources and be directly modulated for high bit rate optical communications.
量子阱激光器具有良好的小信号调制频率响应，能作为高速光通信光源采用直接调制方式进行信号传输。
If the modulation order is different, the higher the order is, the worse the performance is, but the transmitting rate is bigger.
随着调制阶数的增加，正交空时分组码的性能越来越差，但传输速率变大；
Vascular endothelial function was evaluated by arterial augmentation index (AAI), and autonomic modulation was evaluated by heart rate variability (HRV) and blood pressure variability (BPV).
采用动脉增加指数（AAI）评价血管内皮功能，心率变异（HRV）及血压变异（BPV）评价自主神经调制。
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