novelraw Chapter 32 Stepping onto the stage!
Chapter 32 Stepping onto the stage!
After searching for a long time, Lin Yu found out exactly how civilian GPS signals were interfered with in 94.
There are two possibilities: one is that high-frequency noise is added to the signal clock, making the ranging inaccurate.
Secondly, they deliberately broadcast incorrect satellite orbit parameters, making the calculated position incorrect from the start.
It wasn't until May 2000 that Bubba officially ordered the closure of the SA policy.
After the policy ended, the accuracy of civilian GPS improved by orders of magnitude overnight.
Incidentally, the first Beidou navigation experimental satellite was also launched in 2000.
Currently, as long as SA jitter is overcome, the GPS blockade can be broken.
In fact, they themselves are also experiencing this kind of jitter under the SA policy, but they have a specific encryption channel. After entering the encryption password, they can remain undisturbed.
Relying on his exceptionally energetic body from his time travel, Lin Yu managed to study for another 10 hours in the basement, subsisting solely on the porridge Song Shu had cooked.
By the time he wanted to leave for the conference room at 1 p.m., Lin Yu had been coding for almost 24 hours straight.
In the conference room, Professor Song was firing on all cylinders.
What does it mean to be afraid of failure and dare not take the plunge?
"Back when we launched spacecraft, everyone was figuring things out as they went along. Were you considered old then?"
"What do you mean Lin Yu hasn't even grown his pubic hair yet? That's just utter nonsense. Was I just wasting my time calling you here?"
Seeing that Professor Song had abandoned his self-restraint and reverted to his usual trolling nature, Chief Engineer Lin quickly stepped in to smooth things over.
"Hey, Zhiwei! Zhiwei! Don't be angry."
"Old Zhao didn't do it on purpose. We've been sitting here for two hours now, and Xiao Yu still hasn't arrived. It's no wonder he's a little resentful. Why don't you two compromise? You go and call Lin Yu?"
Professor Wang, who was standing nearby, also chimed in:
"Yes, Zhiwei, you and your apprentice are both excellent at theory, but theory is never as useful as practice. You've really made a mountain out of a molehill this time. Look, we're all here, but Lin Yu hasn't arrived yet."
Professor Song swung his arm, pulling his hand away from Chief Engineer Lin's grasp, and gave a cold laugh:
"Oh, so now you're rejecting the new proposal? Clinging to outdated technology and hindering technological advancement. You're practically holding back the nation's aerospace industry!"
"What, are you afraid that your practical approach will be overturned by theory?"
Professor Wang, who had just spoken up for Song, instantly turned red in the face, his expression turning a deep purplish-red. He tossed his head, gave a cold snort, and ignored Professor Song completely.
Lin Yu arrived late, and Professor Song has yet to give everyone an explanation.
Although everyone was just having a meeting in a different place, it didn't matter if Lin Yu couldn't bring anything.
However, Lin Yu and Professor Song's previous modifications to the grid wing had already infringed upon the interests of many people.
Even with Chief Engineer Lin standing in the way, there are still quite a few people quietly stirring up trouble.
Seeing that Professor Wang had also given up, Director Liu, who was filling out the budget, became restless.
He was about to speak when Professor Song beat him to it:
"What? Are you going to accuse me of wasting the budget?"
"You don't even dare approve budgets that are supported by data and theory? Are you just afraid of taking responsibility? I really don't know what's wrong with these young people these days. Don't they want to dedicate themselves to construction?"
Director Liu at the space agency was just a young man in his early thirties, and he had never seen such a sharp style of play before.
Seeing that Professor Song was so adept at putting on airs, Director Liu waved his hand repeatedly, not daring to say another word.
Right now, half of the professors in the research lab are discussing and watching the drama unfold, while the other half are the opposing sides in this drama.
The senior experts, who are focused on their research, have reduced the analog error to nearly 50 meters by adjusting the filtering algorithm and optimizing the signal receiving module.
But going any further would have hit the ceiling of hardware and theory, making it really difficult to continue, so they all shifted their focus to watching the show.
Professor Song raged for a while longer, and finally no one dared to challenge him anymore. But Professor Song was still not satisfied.
They turned their attention to Chief Engineer Lin.
Even Chief Engineer Lin, who had cultivated a good temper for many years, couldn't help but roll his eyes:
"Zhiwei, just go for it."
"If you keep going like this, no one will sympathize with you if you tell us again that your students have a sharp tongue."
As soon as Chief Engineer Lin uttered those words without any mercy, the professors present all chuckled.
Professor Song, who had been as proud as a victorious rooster, shook his head dejectedly.
"It's a misfortune for my sect, a misfortune for my sect. I've taken in such a sharp-tongued disciple. I'm actually quite pitiful."
Seeing Professor Song putting on an act, the other professors couldn't hold back any longer and burst into laughter.
All of you here are longtime friends, and we've worked together for countless years.
With the year-end approaching, Professor Song got serious and decided to gather them together. Although some people said they didn't want to come, they all came in the end.
Just as everyone was laughing.
The conference room door was gently pushed open, and Lin Yu walked in, clutching a stack of papers covered with formulas.
His voice was clear and bright: "I'm sorry, professors, I'm late."
"Professor Song, senior colleagues, I have an idea that might improve the accuracy of civilian GPS signals to within one meter."
"This allows us to achieve the same signal accuracy as the U.S. military."
As soon as he finished speaking, the conference room, which had been filled with laughter, fell silent instantly.
The leap from 100 meters to 1 meter is still too great.
Professor Zhou, who hadn't been involved in Professor Song's history of feuds, also frowned:
"Xiaoyu, we're trying to figure out a solution for the GPS issue. But what you're saying is a bit too far-fetched."
"A 100-meter level of error cannot be solved by mere wishful thinking; how can the gap in hardware be bridged?"
In Professor Zhou's eyes, Lin Yu was just a young assistant who had just joined the research group. Although he had some talent, he was not yet capable of solving the core problems.
Assuming Professor Song was trying to promote Lin Yu, Professor Zhou turned his attention to Professor Song upon seeing Lin Yu's arrival:
"Zhiwei, the person has arrived, so tell us your plan."
Seeing that none of the professors took Lin Yu seriously, Professor Song stood up, smiled, and shook his head.
"Do you all think of me as the kind of person who's eager to let younger people take over and enjoy the benefits?"
"This plan was absolutely, completely, created by my own diligent student!"
"Just listen to this!"
"Lin Yu, continue. Your teacher will support you."
Don't be fooled by the fact that it's just a gathering of professors; there are actually many guards outside. If the professors really don't give him a chance to speak, then Lin Yu really has no way to do anything about it.
With Professor Song standing in front of him, Lin Yu nodded to his mentor, strode confidently to the blackboard in the main part of the conference room, and loudly read out the SA policy that he had previously explained to Professor Song.
He then added his newly discovered method:
"In terms of hardware, we really can't compare to the United States. After all, they launch their own satellites."
"However, cracking their band interference through software is not beyond our capabilities."
"The US's SA signal band jamming is ultimately just random, messy data. As long as we can use machine learning to identify, predict, and target that messy data, then the US military's jamming is just a joke to us."
"And we have already been able to do that."