查询词典 headroom

The receiver's high-current capability enables it to effortlessly drive even difficult loudspeaker loads, while ultrawide bandwidth provides far superior phase linearity, lower distortion, greater high-frequency headroom, and more accurate frequency response in the audible frequency range.

接收器的高电流能力，使它能够毫不费力地驱动扬声器甚至难以负荷，同时提供超带宽远远优于阶段线性度，低失真，更多的高频率余量，以及更准确的频率响应的发声频率范围。

The dual-band differential LNA use Inductive source degeneration structure, a matching network is used for the LNA to develop dual-band. The micro-mixer use a matching network shunt and parallel LC elements to develop wide-band matching. The biasing method reduces the"voltage headroom" difficulties inherent to the Gilbert cell, and the mixer linearity can be improved using this biasing method "Charge -Injection"by accurate adjustment of the input MOSFET operating point. The complementary VCO based on 2.5GHz, and tuning output buffer to approach 2GHz/5GHz dual-band for dual-band down-converter with MMIC technology.

其中双频差动低杂讯放大器，本电路用Inductive Source Degeneration 架构，在匹配网上设计，使低杂讯放大器工作在个频带上达成双频带的效果；CMOS 微混频器上采用LC串联、并联电路做匹配，达到宽频匹配的效果，并加入了"Charge-Injection"的方法来改善"voltage headroom"的问题，并同时提高线性度的表现；互补式压控振荡器以2.5GHz为基频的振荡器为出发点，透过电路的调整，以期达成2.5/5GHz的双频带需求，能够完整达成双频带接收机系统。

New, and straight from the Barber Custom Shop, The Barb EQ adds cool Blackface-sounding controls to the 5E3 Tweed Deluxe and to amps using single or no tone knob designs. The Barb EQ has three controls, volume, treble and bass. Your Tweed Deluxe will sound much larger and very much like the sweetest Blackface Deluxe you ever heard, with greatly enhanced volume control and input headroom. Just add this in front of your small to medium amp, and enjoy the ability to footswitch bubbly BF style tone into any amp. The Barb E.Q. also can attenuate better and with much improved frequency response than any guitar's volume knob, as well as being able to boost your signal if needed. The true bypass has an effect insert to allow simplied switching of other pedals. The Barber E.Q. uses a voltage booster to run internally at 25 volts, and externally uses 9 volts (either battery or optional adapter) to keep life simple.

这类产品一直是哥喜欢的，不过国内买不到特别能用的，哥自己也只有一块儿ELECTRO-HARMONIX的TUBE EQ，虽然声儿好但是噪音有点儿操蛋个头儿又大跟个便当盒子似的，而且哥自己也极其腻味电子管儿的维护与更换， CARL MARTIN的吧李大胡子又说不好使，声儿太干，想托人带个SADOWSKY PREAMP DI 吧又太TM贵了，哥也后悔前段儿时间邱培容出呀内块儿SADOWSKY 的时候儿哥没出手，不过哥还是希望有个BARTOLINI 的TCT PEDAL，内才是MARCUS MILLER用的，最近看到 ATELIER Z也出了不少类似产品，价格也不高，不过日本子内边儿购买有点儿不方便啊，我操这下可好了， BARBER 出这个正是哥喜欢的哥说实话极其腻味给FENDER用MID-RANGE CONTROL过者DRIVE类BOOST

Headroom in the central aisle was barely six feet (1.8 m) and the seat pitch was 38-inch (970 mm), giving only 6 or 7 inches (180 mm) more legroom than in an international coach class cabin.

中央通道静高只有6英尺（1.8米），座位间距38英寸（970毫米），相对于国际航班的二等舱，也只多预留了6—7英寸（180毫米）的腿部空间。

The impact of the analog tuner section is typically small provided a good AGC concept and sufficient C/N headroom are available.

模拟调谐电路部分的影响是非常的小，如果一个好的自动增益控制概念和足够的 C/N 余量是可利用的。

If we increase headroom, we decrease signal-to-noise ratio.

如果我们增加Headroom，就得减小信噪比。

So please don't let people tell you analog has more "headroom" than digital. This is simply not true.

所以人们老是说模拟的设备Headroom更多是不对的！

For convenience, we often divide dynamic range into two more specific ranges: signal-to-noise ratio and headroom.

为了方便，我们经常把动态范围分成两个更小的范围：信噪比和headroom。

Headroom is only relative to your noise floor below your reference.

Headroom只跟你的设备低噪有关系。

If we improve signal-to-noise, we decrease headroom.

如果我们改善信噪比，就得减小Headroom。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。