Direct Digital Synthesizer (DDS) has the advantages of high frequency resolution, rapid frequency change rate and low phase noise.
直接数字频率合成器dds具有极高的分辨率、频率转换速度快、相位噪声低等优点。
Doppler centric frequency is influenced much greater than Doppler FM rate and azimuth resolution is.
对多普勒中心频率影响大，对多普勒调频斜率及方位分辨率影响小。
Spectrum equilibrium filter can compensate high frequency absolutely and has high compensation rate, it can improve the resolution of seismic prospecting to a great extent.
频谱均衡滤波器对高频进行绝对补偿，且具有较高的高频提升速率，可以明显提高地震勘探的分辨率。
High sampling rate and high bit resolution provided in a single instrument enable designers to create ideal waveforms for accurate test of radar, satellite and frequency agile systems.
它在单一仪器中提供高采样率和高位分辨率特性，使设计人员能够生成理想的波形，以便对雷达、卫星和频率捷变系统进行精确测试。
DDS has both the advantages of high frequency resolution, rapid frequency change rate and low phase noise and the disadvantage of bad spur suppression performance with Max value of -65 dB.
DDS的优点是具有极高的分辨率、频率转换速率快、相位噪声低等；缺点是杂散度抑制比性能差，很难做到- 65d B。
DDS has both the advantages of high frequency resolution, rapid frequency change rate and low phase noise and the disadvantage of bad spur suppression performance with Max value of -65 dB.
DDS的优点是具有极高的分辨率、频率转换速率快、相位噪声低等；缺点是杂散度抑制比性能差，很难做到- 65d B。
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